./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 07:04:53,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 07:04:53,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 07:04:53,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 07:04:53,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 07:04:53,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 07:04:53,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 07:04:53,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 07:04:53,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 07:04:53,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 07:04:53,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 07:04:53,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 07:04:53,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 07:04:53,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 07:04:53,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 07:04:53,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 07:04:53,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 07:04:53,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 07:04:53,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 07:04:53,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 07:04:53,342 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 07:04:53,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 07:04:53,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 07:04:53,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 07:04:53,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 07:04:53,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 07:04:53,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 07:04:53,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 07:04:53,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 07:04:53,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 07:04:53,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 07:04:53,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 07:04:53,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 07:04:53,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 07:04:53,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 07:04:53,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 07:04:53,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 07:04:53,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 07:04:53,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 07:04:53,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 07:04:53,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 07:04:53,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 07:04:53,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-14 07:04:53,375 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 07:04:53,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 07:04:53,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 07:04:53,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 07:04:53,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 07:04:53,377 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 07:04:53,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 07:04:53,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 07:04:53,377 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 07:04:53,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 07:04:53,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 07:04:53,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 07:04:53,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 07:04:53,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 07:04:53,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 07:04:53,378 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-14 07:04:53,379 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-14 07:04:53,379 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-14 07:04:53,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 07:04:53,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 07:04:53,379 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 07:04:53,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 07:04:53,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 07:04:53,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 07:04:53,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 07:04:53,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:04:53,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 07:04:53,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 07:04:53,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 07:04:53,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 07:04:53,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2022-07-14 07:04:53,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 07:04:53,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 07:04:53,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 07:04:53,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 07:04:53,590 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 07:04:53,590 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-07-14 07:04:53,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77fb081cc/4522cb6816ad4ae8a9f5cba431e8264c/FLAGd23e328e9 [2022-07-14 07:04:54,104 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 07:04:54,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-07-14 07:04:54,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77fb081cc/4522cb6816ad4ae8a9f5cba431e8264c/FLAGd23e328e9 [2022-07-14 07:04:54,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77fb081cc/4522cb6816ad4ae8a9f5cba431e8264c [2022-07-14 07:04:54,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 07:04:54,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 07:04:54,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 07:04:54,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 07:04:54,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 07:04:54,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3d58f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54, skipping insertion in model container [2022-07-14 07:04:54,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 07:04:54,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 07:04:54,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-07-14 07:04:54,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:04:54,485 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 07:04:54,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-07-14 07:04:54,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:04:54,608 INFO L208 MainTranslator]: Completed translation [2022-07-14 07:04:54,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54 WrapperNode [2022-07-14 07:04:54,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 07:04:54,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 07:04:54,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 07:04:54,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 07:04:54,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,724 INFO L137 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1583 [2022-07-14 07:04:54,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 07:04:54,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 07:04:54,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 07:04:54,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 07:04:54,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 07:04:54,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 07:04:54,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 07:04:54,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 07:04:54,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (1/1) ... [2022-07-14 07:04:54,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:04:54,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:04:54,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 07:04:54,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 07:04:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-07-14 07:04:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-07-14 07:04:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 07:04:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-07-14 07:04:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-07-14 07:04:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-07-14 07:04:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-07-14 07:04:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-07-14 07:04:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-07-14 07:04:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-14 07:04:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-14 07:04:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-14 07:04:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-14 07:04:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-07-14 07:04:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-07-14 07:04:54,834 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-07-14 07:04:54,834 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-07-14 07:04:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-07-14 07:04:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-07-14 07:04:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-14 07:04:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-14 07:04:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 07:04:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-14 07:04:54,835 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-14 07:04:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-07-14 07:04:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-07-14 07:04:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 07:04:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 07:04:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-07-14 07:04:54,836 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-07-14 07:04:55,082 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 07:04:55,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 07:04:55,168 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,201 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-07-14 07:04:55,201 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-07-14 07:04:55,241 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,252 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-14 07:04:55,253 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-14 07:04:55,258 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,261 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,264 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,269 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,277 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,279 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,281 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:55,719 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0; [2022-07-14 07:04:55,719 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2022-07-14 07:04:55,719 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2022-07-14 07:04:55,719 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2022-07-14 07:04:55,719 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2022-07-14 07:04:55,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-07-14 07:04:55,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-07-14 07:04:55,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2022-07-14 07:04:55,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2022-07-14 07:04:55,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2022-07-14 07:04:55,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2022-07-14 07:04:55,720 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-14 07:04:55,721 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-14 07:04:55,721 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-07-14 07:04:55,721 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-07-14 07:04:55,749 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 07:04:55,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 07:04:55,761 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 07:04:55,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:04:55 BoogieIcfgContainer [2022-07-14 07:04:55,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 07:04:55,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 07:04:55,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 07:04:55,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 07:04:55,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 07:04:54" (1/3) ... [2022-07-14 07:04:55,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89b291a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:04:55, skipping insertion in model container [2022-07-14 07:04:55,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:54" (2/3) ... [2022-07-14 07:04:55,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89b291a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:04:55, skipping insertion in model container [2022-07-14 07:04:55,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:04:55" (3/3) ... [2022-07-14 07:04:55,772 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2022-07-14 07:04:55,781 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 07:04:55,782 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 07:04:55,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 07:04:55,837 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3af2478a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27999094 [2022-07-14 07:04:55,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 07:04:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2022-07-14 07:04:55,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 07:04:55,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:55,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:55,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:55,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2022-07-14 07:04:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:55,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129559235] [2022-07-14 07:04:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:55,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:56,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:56,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:56,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129559235] [2022-07-14 07:04:56,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129559235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:56,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:56,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:56,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303817393] [2022-07-14 07:04:56,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:56,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:56,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:56,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:56,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,051 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:56,167 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2022-07-14 07:04:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:56,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 07:04:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:56,182 INFO L225 Difference]: With dead ends: 623 [2022-07-14 07:04:56,182 INFO L226 Difference]: Without dead ends: 619 [2022-07-14 07:04:56,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,186 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:56,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:04:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-14 07:04:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2022-07-14 07:04:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:04:56,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2022-07-14 07:04:56,269 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2022-07-14 07:04:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:56,272 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2022-07-14 07:04:56,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,272 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2022-07-14 07:04:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 07:04:56,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:56,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:56,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 07:04:56,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:56,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2022-07-14 07:04:56,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:56,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555898390] [2022-07-14 07:04:56,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:56,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:56,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:56,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:56,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555898390] [2022-07-14 07:04:56,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555898390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:56,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:56,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:56,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647179200] [2022-07-14 07:04:56,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:56,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:56,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:56,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:56,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,315 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:56,365 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2022-07-14 07:04:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 07:04:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:56,370 INFO L225 Difference]: With dead ends: 606 [2022-07-14 07:04:56,370 INFO L226 Difference]: Without dead ends: 606 [2022-07-14 07:04:56,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,374 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:56,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:04:56,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-07-14 07:04:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2022-07-14 07:04:56,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:04:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2022-07-14 07:04:56,414 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2022-07-14 07:04:56,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:56,414 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2022-07-14 07:04:56,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,415 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2022-07-14 07:04:56,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 07:04:56,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:56,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:56,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 07:04:56,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:56,416 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2022-07-14 07:04:56,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:56,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835927986] [2022-07-14 07:04:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:56,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:56,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:56,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835927986] [2022-07-14 07:04:56,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835927986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:56,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:56,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:04:56,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745555918] [2022-07-14 07:04:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:56,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:56,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:56,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:56,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,468 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:56,545 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2022-07-14 07:04:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:56,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 07:04:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:56,548 INFO L225 Difference]: With dead ends: 602 [2022-07-14 07:04:56,548 INFO L226 Difference]: Without dead ends: 599 [2022-07-14 07:04:56,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,549 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:56,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:04:56,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-07-14 07:04:56,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-07-14 07:04:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:04:56,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2022-07-14 07:04:56,569 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2022-07-14 07:04:56,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:56,570 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2022-07-14 07:04:56,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2022-07-14 07:04:56,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 07:04:56,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:56,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:56,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 07:04:56,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:56,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:56,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2022-07-14 07:04:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:56,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083126249] [2022-07-14 07:04:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:56,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:56,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:56,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083126249] [2022-07-14 07:04:56,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083126249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:56,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:56,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:56,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394810446] [2022-07-14 07:04:56,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:56,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:56,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:56,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:56,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,602 INFO L87 Difference]: Start difference. First operand 599 states and 890 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:56,649 INFO L93 Difference]: Finished difference Result 602 states and 892 transitions. [2022-07-14 07:04:56,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:56,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-14 07:04:56,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:56,652 INFO L225 Difference]: With dead ends: 602 [2022-07-14 07:04:56,652 INFO L226 Difference]: Without dead ends: 599 [2022-07-14 07:04:56,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,658 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:56,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:04:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-07-14 07:04:56,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-07-14 07:04:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.4513457556935818) internal successors, (701), 490 states have internal predecessors, (701), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:04:56,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 889 transitions. [2022-07-14 07:04:56,682 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 889 transitions. Word has length 13 [2022-07-14 07:04:56,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:56,683 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 889 transitions. [2022-07-14 07:04:56,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 889 transitions. [2022-07-14 07:04:56,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 07:04:56,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:56,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:56,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 07:04:56,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:56,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839809, now seen corresponding path program 1 times [2022-07-14 07:04:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:56,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785122271] [2022-07-14 07:04:56,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:56,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:56,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:56,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:56,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785122271] [2022-07-14 07:04:56,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785122271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:56,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:56,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:56,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198283737] [2022-07-14 07:04:56,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:56,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:56,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:56,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,727 INFO L87 Difference]: Start difference. First operand 599 states and 889 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:56,851 INFO L93 Difference]: Finished difference Result 851 states and 1244 transitions. [2022-07-14 07:04:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:56,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-14 07:04:56,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:56,859 INFO L225 Difference]: With dead ends: 851 [2022-07-14 07:04:56,859 INFO L226 Difference]: Without dead ends: 850 [2022-07-14 07:04:56,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,859 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 567 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:56,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1036 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:04:56,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-07-14 07:04:56,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 799. [2022-07-14 07:04:56,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 656 states have (on average 1.4222560975609757) internal successors, (933), 649 states have internal predecessors, (933), 107 states have call successors, (107), 31 states have call predecessors, (107), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2022-07-14 07:04:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1176 transitions. [2022-07-14 07:04:56,881 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1176 transitions. Word has length 15 [2022-07-14 07:04:56,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:56,881 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1176 transitions. [2022-07-14 07:04:56,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1176 transitions. [2022-07-14 07:04:56,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 07:04:56,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:56,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:56,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 07:04:56,883 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:56,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1930286977, now seen corresponding path program 1 times [2022-07-14 07:04:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:56,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329461524] [2022-07-14 07:04:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:56,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:56,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:56,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329461524] [2022-07-14 07:04:56,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329461524] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:56,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:56,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:56,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980708275] [2022-07-14 07:04:56,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:56,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:56,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:56,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:56,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,941 INFO L87 Difference]: Start difference. First operand 799 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:56,959 INFO L93 Difference]: Finished difference Result 875 states and 1272 transitions. [2022-07-14 07:04:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:56,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-14 07:04:56,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:56,963 INFO L225 Difference]: With dead ends: 875 [2022-07-14 07:04:56,963 INFO L226 Difference]: Without dead ends: 875 [2022-07-14 07:04:56,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:56,964 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 601 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:56,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:04:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2022-07-14 07:04:56,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 847. [2022-07-14 07:04:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 699 states have (on average 1.4406294706723892) internal successors, (1007), 703 states have internal predecessors, (1007), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-07-14 07:04:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1240 transitions. [2022-07-14 07:04:56,983 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1240 transitions. Word has length 19 [2022-07-14 07:04:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:56,983 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1240 transitions. [2022-07-14 07:04:56,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1240 transitions. [2022-07-14 07:04:56,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:04:56,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:56,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:56,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 07:04:56,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:56,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1396316142, now seen corresponding path program 1 times [2022-07-14 07:04:56,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:56,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975054363] [2022-07-14 07:04:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:56,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:57,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:57,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975054363] [2022-07-14 07:04:57,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975054363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:57,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:57,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:57,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38968705] [2022-07-14 07:04:57,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:57,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:57,024 INFO L87 Difference]: Start difference. First operand 847 states and 1240 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:57,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:57,135 INFO L93 Difference]: Finished difference Result 1342 states and 2023 transitions. [2022-07-14 07:04:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:57,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:04:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:57,141 INFO L225 Difference]: With dead ends: 1342 [2022-07-14 07:04:57,142 INFO L226 Difference]: Without dead ends: 1342 [2022-07-14 07:04:57,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:57,144 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 339 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:57,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1625 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:04:57,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-07-14 07:04:57,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1035. [2022-07-14 07:04:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 855 states have (on average 1.4385964912280702) internal successors, (1230), 857 states have internal predecessors, (1230), 123 states have call successors, (123), 47 states have call predecessors, (123), 56 states have return successors, (205), 130 states have call predecessors, (205), 115 states have call successors, (205) [2022-07-14 07:04:57,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1558 transitions. [2022-07-14 07:04:57,168 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1558 transitions. Word has length 21 [2022-07-14 07:04:57,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:57,169 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1558 transitions. [2022-07-14 07:04:57,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1558 transitions. [2022-07-14 07:04:57,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 07:04:57,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:57,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:57,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 07:04:57,171 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:57,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:57,172 INFO L85 PathProgramCache]: Analyzing trace with hash -574680278, now seen corresponding path program 1 times [2022-07-14 07:04:57,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:57,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706299436] [2022-07-14 07:04:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:57,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:57,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706299436] [2022-07-14 07:04:57,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706299436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:57,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:57,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:04:57,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772460938] [2022-07-14 07:04:57,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:57,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:04:57,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:04:57,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:04:57,246 INFO L87 Difference]: Start difference. First operand 1035 states and 1558 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:57,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:57,540 INFO L93 Difference]: Finished difference Result 1076 states and 1603 transitions. [2022-07-14 07:04:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:04:57,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-14 07:04:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:57,545 INFO L225 Difference]: With dead ends: 1076 [2022-07-14 07:04:57,545 INFO L226 Difference]: Without dead ends: 1076 [2022-07-14 07:04:57,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:57,546 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 1029 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:57,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 876 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:04:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2022-07-14 07:04:57,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1017. [2022-07-14 07:04:57,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 840 states have (on average 1.4321428571428572) internal successors, (1203), 842 states have internal predecessors, (1203), 120 states have call successors, (120), 44 states have call predecessors, (120), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2022-07-14 07:04:57,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1522 transitions. [2022-07-14 07:04:57,568 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1522 transitions. Word has length 22 [2022-07-14 07:04:57,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:57,568 INFO L495 AbstractCegarLoop]: Abstraction has 1017 states and 1522 transitions. [2022-07-14 07:04:57,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1522 transitions. [2022-07-14 07:04:57,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 07:04:57,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:57,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:57,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 07:04:57,570 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:57,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:57,571 INFO L85 PathProgramCache]: Analyzing trace with hash -401986427, now seen corresponding path program 1 times [2022-07-14 07:04:57,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:57,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524569696] [2022-07-14 07:04:57,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:57,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:57,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:57,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524569696] [2022-07-14 07:04:57,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524569696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:57,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:57,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:57,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808175425] [2022-07-14 07:04:57,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:57,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:57,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:57,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:57,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:57,609 INFO L87 Difference]: Start difference. First operand 1017 states and 1522 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:57,650 INFO L93 Difference]: Finished difference Result 1016 states and 1519 transitions. [2022-07-14 07:04:57,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:57,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-14 07:04:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:57,653 INFO L225 Difference]: With dead ends: 1016 [2022-07-14 07:04:57,654 INFO L226 Difference]: Without dead ends: 1016 [2022-07-14 07:04:57,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:57,655 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 22 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:57,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1254 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:04:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-07-14 07:04:57,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2022-07-14 07:04:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 840 states have (on average 1.4297619047619048) internal successors, (1201), 841 states have internal predecessors, (1201), 119 states have call successors, (119), 44 states have call predecessors, (119), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2022-07-14 07:04:57,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1519 transitions. [2022-07-14 07:04:57,676 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1519 transitions. Word has length 23 [2022-07-14 07:04:57,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:57,676 INFO L495 AbstractCegarLoop]: Abstraction has 1016 states and 1519 transitions. [2022-07-14 07:04:57,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1519 transitions. [2022-07-14 07:04:57,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:04:57,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:57,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:57,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 07:04:57,679 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:57,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:57,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1030908419, now seen corresponding path program 1 times [2022-07-14 07:04:57,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:57,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006275946] [2022-07-14 07:04:57,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:57,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:04:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:57,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:57,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:57,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006275946] [2022-07-14 07:04:57,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006275946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:57,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:57,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:04:57,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801016688] [2022-07-14 07:04:57,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:57,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:04:57,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:57,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:04:57,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:04:57,720 INFO L87 Difference]: Start difference. First operand 1016 states and 1519 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:57,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:57,911 INFO L93 Difference]: Finished difference Result 1313 states and 1942 transitions. [2022-07-14 07:04:57,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:04:57,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-14 07:04:57,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:57,916 INFO L225 Difference]: With dead ends: 1313 [2022-07-14 07:04:57,916 INFO L226 Difference]: Without dead ends: 1313 [2022-07-14 07:04:57,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:57,917 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 771 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:57,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 1395 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:04:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-07-14 07:04:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 1073. [2022-07-14 07:04:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 888 states have (on average 1.4144144144144144) internal successors, (1256), 894 states have internal predecessors, (1256), 116 states have call successors, (116), 49 states have call predecessors, (116), 68 states have return successors, (178), 129 states have call predecessors, (178), 109 states have call successors, (178) [2022-07-14 07:04:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1550 transitions. [2022-07-14 07:04:57,937 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1550 transitions. Word has length 36 [2022-07-14 07:04:57,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:57,937 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1550 transitions. [2022-07-14 07:04:57,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:57,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1550 transitions. [2022-07-14 07:04:57,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:04:57,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:57,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:57,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 07:04:57,940 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:57,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1380818810, now seen corresponding path program 1 times [2022-07-14 07:04:57,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:57,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700142837] [2022-07-14 07:04:57,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:57,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 07:04:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:57,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:57,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700142837] [2022-07-14 07:04:57,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700142837] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:57,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:57,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:04:57,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783963559] [2022-07-14 07:04:57,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:57,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:04:57,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:57,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:04:57,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:04:57,968 INFO L87 Difference]: Start difference. First operand 1073 states and 1550 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:58,167 INFO L93 Difference]: Finished difference Result 844 states and 1225 transitions. [2022-07-14 07:04:58,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:04:58,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-14 07:04:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:58,171 INFO L225 Difference]: With dead ends: 844 [2022-07-14 07:04:58,171 INFO L226 Difference]: Without dead ends: 844 [2022-07-14 07:04:58,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:58,171 INFO L413 NwaCegarLoop]: 726 mSDtfsCounter, 248 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:58,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1771 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:04:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-07-14 07:04:58,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 805. [2022-07-14 07:04:58,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 666 states have (on average 1.4159159159159158) internal successors, (943), 674 states have internal predecessors, (943), 94 states have call successors, (94), 33 states have call predecessors, (94), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-07-14 07:04:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1158 transitions. [2022-07-14 07:04:58,185 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1158 transitions. Word has length 35 [2022-07-14 07:04:58,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:58,185 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1158 transitions. [2022-07-14 07:04:58,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:58,185 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1158 transitions. [2022-07-14 07:04:58,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-14 07:04:58,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:58,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:58,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 07:04:58,187 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:58,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:58,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894010, now seen corresponding path program 1 times [2022-07-14 07:04:58,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:58,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561061838] [2022-07-14 07:04:58,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:58,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:58,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:58,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561061838] [2022-07-14 07:04:58,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561061838] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:58,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:58,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:04:58,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801154043] [2022-07-14 07:04:58,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:58,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:04:58,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:58,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:04:58,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:04:58,210 INFO L87 Difference]: Start difference. First operand 805 states and 1158 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:58,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:58,412 INFO L93 Difference]: Finished difference Result 823 states and 1179 transitions. [2022-07-14 07:04:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:04:58,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-14 07:04:58,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:58,415 INFO L225 Difference]: With dead ends: 823 [2022-07-14 07:04:58,416 INFO L226 Difference]: Without dead ends: 823 [2022-07-14 07:04:58,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:58,416 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 695 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:58,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1107 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:04:58,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-07-14 07:04:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 805. [2022-07-14 07:04:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 666 states have (on average 1.412912912912913) internal successors, (941), 674 states have internal predecessors, (941), 94 states have call successors, (94), 33 states have call predecessors, (94), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-07-14 07:04:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1156 transitions. [2022-07-14 07:04:58,430 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1156 transitions. Word has length 32 [2022-07-14 07:04:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:58,431 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1156 transitions. [2022-07-14 07:04:58,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1156 transitions. [2022-07-14 07:04:58,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:04:58,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:58,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:58,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 07:04:58,433 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:58,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1889417613, now seen corresponding path program 1 times [2022-07-14 07:04:58,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:58,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734847366] [2022-07-14 07:04:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:58,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:04:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:58,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:58,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734847366] [2022-07-14 07:04:58,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734847366] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:58,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:58,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:04:58,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133223146] [2022-07-14 07:04:58,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:58,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:04:58,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:58,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:04:58,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:58,484 INFO L87 Difference]: Start difference. First operand 805 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:58,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:58,855 INFO L93 Difference]: Finished difference Result 714 states and 1034 transitions. [2022-07-14 07:04:58,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:04:58,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-14 07:04:58,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:58,858 INFO L225 Difference]: With dead ends: 714 [2022-07-14 07:04:58,858 INFO L226 Difference]: Without dead ends: 714 [2022-07-14 07:04:58,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:04:58,859 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 846 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:58,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1651 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:04:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-07-14 07:04:58,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 673. [2022-07-14 07:04:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 555 states have (on average 1.4108108108108108) internal successors, (783), 562 states have internal predecessors, (783), 86 states have call successors, (86), 26 states have call predecessors, (86), 31 states have return successors, (96), 84 states have call predecessors, (96), 79 states have call successors, (96) [2022-07-14 07:04:58,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 965 transitions. [2022-07-14 07:04:58,870 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 965 transitions. Word has length 36 [2022-07-14 07:04:58,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:58,870 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 965 transitions. [2022-07-14 07:04:58,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:58,871 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 965 transitions. [2022-07-14 07:04:58,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:04:58,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:58,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:58,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 07:04:58,872 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:58,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:58,873 INFO L85 PathProgramCache]: Analyzing trace with hash 138802049, now seen corresponding path program 1 times [2022-07-14 07:04:58,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:58,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891814204] [2022-07-14 07:04:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:58,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:58,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891814204] [2022-07-14 07:04:58,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891814204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:58,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:58,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:04:58,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410877268] [2022-07-14 07:04:58,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:58,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:04:58,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:58,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:04:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:58,892 INFO L87 Difference]: Start difference. First operand 673 states and 965 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:58,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:58,936 INFO L93 Difference]: Finished difference Result 825 states and 1174 transitions. [2022-07-14 07:04:58,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:04:58,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-14 07:04:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:58,939 INFO L225 Difference]: With dead ends: 825 [2022-07-14 07:04:58,939 INFO L226 Difference]: Without dead ends: 825 [2022-07-14 07:04:58,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:04:58,940 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 135 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:58,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1390 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:04:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-07-14 07:04:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 724. [2022-07-14 07:04:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 602 states have (on average 1.3853820598006645) internal successors, (834), 602 states have internal predecessors, (834), 86 states have call successors, (86), 26 states have call predecessors, (86), 35 states have return successors, (107), 95 states have call predecessors, (107), 79 states have call successors, (107) [2022-07-14 07:04:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1027 transitions. [2022-07-14 07:04:58,951 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1027 transitions. Word has length 34 [2022-07-14 07:04:58,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:58,951 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 1027 transitions. [2022-07-14 07:04:58,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:58,952 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1027 transitions. [2022-07-14 07:04:58,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:04:58,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:58,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:58,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 07:04:58,953 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:58,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:58,954 INFO L85 PathProgramCache]: Analyzing trace with hash -298326081, now seen corresponding path program 1 times [2022-07-14 07:04:58,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:58,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112825549] [2022-07-14 07:04:58,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:58,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:58,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:58,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112825549] [2022-07-14 07:04:58,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112825549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:58,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:58,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:04:58,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875606562] [2022-07-14 07:04:58,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:58,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:04:58,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:58,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:04:58,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:04:58,991 INFO L87 Difference]: Start difference. First operand 724 states and 1027 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:59,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:59,173 INFO L93 Difference]: Finished difference Result 705 states and 997 transitions. [2022-07-14 07:04:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:04:59,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-14 07:04:59,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:59,176 INFO L225 Difference]: With dead ends: 705 [2022-07-14 07:04:59,176 INFO L226 Difference]: Without dead ends: 705 [2022-07-14 07:04:59,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:59,179 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 673 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:59,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1104 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:04:59,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2022-07-14 07:04:59,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2022-07-14 07:04:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 592 states have internal predecessors, (813), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:04:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 997 transitions. [2022-07-14 07:04:59,189 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 997 transitions. Word has length 34 [2022-07-14 07:04:59,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:59,189 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 997 transitions. [2022-07-14 07:04:59,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:59,190 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 997 transitions. [2022-07-14 07:04:59,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:04:59,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:59,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:59,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 07:04:59,191 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:59,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:59,192 INFO L85 PathProgramCache]: Analyzing trace with hash 452395651, now seen corresponding path program 1 times [2022-07-14 07:04:59,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:59,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082367694] [2022-07-14 07:04:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:59,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:59,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082367694] [2022-07-14 07:04:59,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082367694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:59,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:59,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:04:59,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061935783] [2022-07-14 07:04:59,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:59,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:04:59,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:59,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:04:59,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:04:59,237 INFO L87 Difference]: Start difference. First operand 705 states and 997 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:59,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:59,480 INFO L93 Difference]: Finished difference Result 802 states and 1139 transitions. [2022-07-14 07:04:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:04:59,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-14 07:04:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:59,483 INFO L225 Difference]: With dead ends: 802 [2022-07-14 07:04:59,483 INFO L226 Difference]: Without dead ends: 802 [2022-07-14 07:04:59,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:59,484 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 749 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:59,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 1197 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:04:59,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2022-07-14 07:04:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 708. [2022-07-14 07:04:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 588 states have (on average 1.3894557823129252) internal successors, (817), 595 states have internal predecessors, (817), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:04:59,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1001 transitions. [2022-07-14 07:04:59,495 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1001 transitions. Word has length 35 [2022-07-14 07:04:59,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:59,495 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 1001 transitions. [2022-07-14 07:04:59,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:59,495 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1001 transitions. [2022-07-14 07:04:59,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:04:59,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:59,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:59,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 07:04:59,497 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:59,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:59,497 INFO L85 PathProgramCache]: Analyzing trace with hash 452672481, now seen corresponding path program 1 times [2022-07-14 07:04:59,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:59,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022630528] [2022-07-14 07:04:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:59,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:59,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:59,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:59,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022630528] [2022-07-14 07:04:59,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022630528] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:59,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:59,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:04:59,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443109404] [2022-07-14 07:04:59,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:59,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:04:59,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:04:59,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:04:59,546 INFO L87 Difference]: Start difference. First operand 708 states and 1001 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:59,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:59,604 INFO L93 Difference]: Finished difference Result 718 states and 1011 transitions. [2022-07-14 07:04:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:04:59,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-14 07:04:59,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:59,609 INFO L225 Difference]: With dead ends: 718 [2022-07-14 07:04:59,609 INFO L226 Difference]: Without dead ends: 691 [2022-07-14 07:04:59,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:04:59,610 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 38 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:59,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3207 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:04:59,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-07-14 07:04:59,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-07-14 07:04:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 571 states have (on average 1.3957968476357268) internal successors, (797), 578 states have internal predecessors, (797), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:04:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 981 transitions. [2022-07-14 07:04:59,625 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 981 transitions. Word has length 35 [2022-07-14 07:04:59,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:59,625 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 981 transitions. [2022-07-14 07:04:59,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:04:59,625 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 981 transitions. [2022-07-14 07:04:59,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 07:04:59,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:59,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:59,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 07:04:59,627 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:59,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:59,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2080196380, now seen corresponding path program 1 times [2022-07-14 07:04:59,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:59,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029155442] [2022-07-14 07:04:59,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:59,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:59,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:04:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:59,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:59,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029155442] [2022-07-14 07:04:59,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029155442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:59,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:59,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:04:59,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789657685] [2022-07-14 07:04:59,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:59,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:04:59,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:04:59,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:04:59,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:04:59,682 INFO L87 Difference]: Start difference. First operand 691 states and 981 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:04:59,880 INFO L93 Difference]: Finished difference Result 727 states and 1043 transitions. [2022-07-14 07:04:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:04:59,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-07-14 07:04:59,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:04:59,884 INFO L225 Difference]: With dead ends: 727 [2022-07-14 07:04:59,884 INFO L226 Difference]: Without dead ends: 725 [2022-07-14 07:04:59,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:04:59,885 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 153 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:04:59,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 1553 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:04:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-07-14 07:04:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 705. [2022-07-14 07:04:59,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3914529914529914) internal successors, (814), 592 states have internal predecessors, (814), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:04:59,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 998 transitions. [2022-07-14 07:04:59,906 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 998 transitions. Word has length 37 [2022-07-14 07:04:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:04:59,907 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 998 transitions. [2022-07-14 07:04:59,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:04:59,907 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 998 transitions. [2022-07-14 07:04:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-14 07:04:59,909 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:04:59,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:04:59,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 07:04:59,909 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:04:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:04:59,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2122568447, now seen corresponding path program 1 times [2022-07-14 07:04:59,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:04:59,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135524709] [2022-07-14 07:04:59,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:04:59,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:04:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:04:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:04:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:04:59,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:04:59,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135524709] [2022-07-14 07:04:59,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135524709] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:04:59,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:04:59,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:04:59,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635623835] [2022-07-14 07:04:59,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:04:59,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:00,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:00,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:00,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:00,000 INFO L87 Difference]: Start difference. First operand 705 states and 998 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:00,339 INFO L93 Difference]: Finished difference Result 725 states and 1040 transitions. [2022-07-14 07:05:00,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:00,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-14 07:05:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:00,343 INFO L225 Difference]: With dead ends: 725 [2022-07-14 07:05:00,343 INFO L226 Difference]: Without dead ends: 725 [2022-07-14 07:05:00,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:00,344 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 787 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:00,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1463 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:00,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2022-07-14 07:05:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 705. [2022-07-14 07:05:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 585 states have (on average 1.3897435897435897) internal successors, (813), 592 states have internal predecessors, (813), 86 states have call successors, (86), 26 states have call predecessors, (86), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:05:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 997 transitions. [2022-07-14 07:05:00,363 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 997 transitions. Word has length 39 [2022-07-14 07:05:00,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:00,363 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 997 transitions. [2022-07-14 07:05:00,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:00,363 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 997 transitions. [2022-07-14 07:05:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-14 07:05:00,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:00,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:00,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 07:05:00,365 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:00,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:00,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1062055151, now seen corresponding path program 1 times [2022-07-14 07:05:00,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:00,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501642725] [2022-07-14 07:05:00,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:00,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:00,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:00,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501642725] [2022-07-14 07:05:00,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501642725] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:00,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:00,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:00,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732282840] [2022-07-14 07:05:00,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:00,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:00,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:00,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:00,425 INFO L87 Difference]: Start difference. First operand 705 states and 997 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:00,758 INFO L93 Difference]: Finished difference Result 741 states and 1059 transitions. [2022-07-14 07:05:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-14 07:05:00,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:00,761 INFO L225 Difference]: With dead ends: 741 [2022-07-14 07:05:00,762 INFO L226 Difference]: Without dead ends: 712 [2022-07-14 07:05:00,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:00,762 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 158 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:00,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3977 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:00,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-07-14 07:05:00,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 696. [2022-07-14 07:05:00,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 578 states have (on average 1.3719723183391004) internal successors, (793), 585 states have internal predecessors, (793), 84 states have call successors, (84), 26 states have call predecessors, (84), 33 states have return successors, (96), 84 states have call predecessors, (96), 77 states have call successors, (96) [2022-07-14 07:05:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 973 transitions. [2022-07-14 07:05:00,797 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 973 transitions. Word has length 40 [2022-07-14 07:05:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:00,797 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 973 transitions. [2022-07-14 07:05:00,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 973 transitions. [2022-07-14 07:05:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:00,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:00,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:00,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-14 07:05:00,800 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:00,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1438594100, now seen corresponding path program 1 times [2022-07-14 07:05:00,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:00,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808496583] [2022-07-14 07:05:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:00,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 07:05:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:00,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:00,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808496583] [2022-07-14 07:05:00,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808496583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:00,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:00,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:00,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721438796] [2022-07-14 07:05:00,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:00,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:00,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:00,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:00,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:00,835 INFO L87 Difference]: Start difference. First operand 696 states and 973 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:01,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,211 INFO L93 Difference]: Finished difference Result 688 states and 980 transitions. [2022-07-14 07:05:01,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:01,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-14 07:05:01,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,214 INFO L225 Difference]: With dead ends: 688 [2022-07-14 07:05:01,214 INFO L226 Difference]: Without dead ends: 688 [2022-07-14 07:05:01,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:01,215 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 252 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1799 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-14 07:05:01,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 672. [2022-07-14 07:05:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 557 states have (on average 1.3698384201077198) internal successors, (763), 563 states have internal predecessors, (763), 83 states have call successors, (83), 26 states have call predecessors, (83), 31 states have return successors, (94), 82 states have call predecessors, (94), 77 states have call successors, (94) [2022-07-14 07:05:01,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 940 transitions. [2022-07-14 07:05:01,225 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 940 transitions. Word has length 43 [2022-07-14 07:05:01,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,225 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 940 transitions. [2022-07-14 07:05:01,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 940 transitions. [2022-07-14 07:05:01,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:01,227 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-14 07:05:01,227 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1007838826, now seen corresponding path program 1 times [2022-07-14 07:05:01,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953203972] [2022-07-14 07:05:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:01,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953203972] [2022-07-14 07:05:01,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953203972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:01,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926819657] [2022-07-14 07:05:01,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:01,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:01,330 INFO L87 Difference]: Start difference. First operand 672 states and 940 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,908 INFO L93 Difference]: Finished difference Result 699 states and 991 transitions. [2022-07-14 07:05:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-07-14 07:05:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,910 INFO L225 Difference]: With dead ends: 699 [2022-07-14 07:05:01,910 INFO L226 Difference]: Without dead ends: 686 [2022-07-14 07:05:01,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:01,911 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 98 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4461 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4461 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-07-14 07:05:01,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 670. [2022-07-14 07:05:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 556 states have (on average 1.368705035971223) internal successors, (761), 562 states have internal predecessors, (761), 82 states have call successors, (82), 26 states have call predecessors, (82), 31 states have return successors, (93), 81 states have call predecessors, (93), 76 states have call successors, (93) [2022-07-14 07:05:01,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 936 transitions. [2022-07-14 07:05:01,920 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 936 transitions. Word has length 44 [2022-07-14 07:05:01,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,921 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 936 transitions. [2022-07-14 07:05:01,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 936 transitions. [2022-07-14 07:05:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:01,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-14 07:05:01,923 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,923 INFO L85 PathProgramCache]: Analyzing trace with hash -938217641, now seen corresponding path program 1 times [2022-07-14 07:05:01,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892332858] [2022-07-14 07:05:01,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:02,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892332858] [2022-07-14 07:05:02,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892332858] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:02,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099024309] [2022-07-14 07:05:02,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:02,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:02,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:02,021 INFO L87 Difference]: Start difference. First operand 670 states and 936 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:02,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:02,684 INFO L93 Difference]: Finished difference Result 696 states and 986 transitions. [2022-07-14 07:05:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:02,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-14 07:05:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:02,687 INFO L225 Difference]: With dead ends: 696 [2022-07-14 07:05:02,687 INFO L226 Difference]: Without dead ends: 683 [2022-07-14 07:05:02,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:02,688 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 98 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4410 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:02,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4410 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:02,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-07-14 07:05:02,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 667. [2022-07-14 07:05:02,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 554 states have (on average 1.3682310469314078) internal successors, (758), 560 states have internal predecessors, (758), 81 states have call successors, (81), 26 states have call predecessors, (81), 31 states have return successors, (92), 80 states have call predecessors, (92), 75 states have call successors, (92) [2022-07-14 07:05:02,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 931 transitions. [2022-07-14 07:05:02,704 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 931 transitions. Word has length 43 [2022-07-14 07:05:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:02,704 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 931 transitions. [2022-07-14 07:05:02,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:02,704 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 931 transitions. [2022-07-14 07:05:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:02,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:02,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:02,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-14 07:05:02,706 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:02,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash 590562129, now seen corresponding path program 1 times [2022-07-14 07:05:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:02,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919768099] [2022-07-14 07:05:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:02,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919768099] [2022-07-14 07:05:02,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919768099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:02,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700180923] [2022-07-14 07:05:02,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:02,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:02,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:02,835 INFO L87 Difference]: Start difference. First operand 667 states and 931 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:03,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:03,603 INFO L93 Difference]: Finished difference Result 716 states and 1006 transitions. [2022-07-14 07:05:03,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:03,604 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-07-14 07:05:03,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:03,606 INFO L225 Difference]: With dead ends: 716 [2022-07-14 07:05:03,606 INFO L226 Difference]: Without dead ends: 699 [2022-07-14 07:05:03,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-07-14 07:05:03,606 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 244 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 5133 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:03,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 5133 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:03,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-14 07:05:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 665. [2022-07-14 07:05:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 553 states have (on average 1.3670886075949367) internal successors, (756), 559 states have internal predecessors, (756), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-07-14 07:05:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 927 transitions. [2022-07-14 07:05:03,618 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 927 transitions. Word has length 47 [2022-07-14 07:05:03,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:03,618 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 927 transitions. [2022-07-14 07:05:03,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:03,619 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 927 transitions. [2022-07-14 07:05:03,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:03,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:03,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:03,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-14 07:05:03,621 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:03,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:03,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1771938136, now seen corresponding path program 1 times [2022-07-14 07:05:03,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:03,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003946207] [2022-07-14 07:05:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:03,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:03,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:03,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003946207] [2022-07-14 07:05:03,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003946207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:03,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:03,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:03,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314429376] [2022-07-14 07:05:03,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:03,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:03,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:03,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:03,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:03,729 INFO L87 Difference]: Start difference. First operand 665 states and 927 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:04,410 INFO L93 Difference]: Finished difference Result 714 states and 1002 transitions. [2022-07-14 07:05:04,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:04,410 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-07-14 07:05:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:04,412 INFO L225 Difference]: With dead ends: 714 [2022-07-14 07:05:04,412 INFO L226 Difference]: Without dead ends: 696 [2022-07-14 07:05:04,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-07-14 07:05:04,413 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 171 mSDsluCounter, 4419 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:04,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 4996 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:04,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-14 07:05:04,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 664. [2022-07-14 07:05:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 552 states have (on average 1.3496376811594204) internal successors, (745), 558 states have internal predecessors, (745), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-07-14 07:05:04,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 916 transitions. [2022-07-14 07:05:04,422 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 916 transitions. Word has length 44 [2022-07-14 07:05:04,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:04,423 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 916 transitions. [2022-07-14 07:05:04,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 10 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:04,423 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 916 transitions. [2022-07-14 07:05:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:04,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:04,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:04,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-14 07:05:04,424 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:04,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash 345167796, now seen corresponding path program 1 times [2022-07-14 07:05:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:04,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581961483] [2022-07-14 07:05:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:04,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:04,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:04,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581961483] [2022-07-14 07:05:04,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581961483] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:04,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:04,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:04,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101415893] [2022-07-14 07:05:04,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:04,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:04,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:04,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:04,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:04,471 INFO L87 Difference]: Start difference. First operand 664 states and 916 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:04,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:04,798 INFO L93 Difference]: Finished difference Result 710 states and 985 transitions. [2022-07-14 07:05:04,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:04,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-14 07:05:04,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:04,802 INFO L225 Difference]: With dead ends: 710 [2022-07-14 07:05:04,802 INFO L226 Difference]: Without dead ends: 668 [2022-07-14 07:05:04,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:04,805 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 235 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:04,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 3684 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:04,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2022-07-14 07:05:04,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 652. [2022-07-14 07:05:04,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 543 states have (on average 1.3443830570902393) internal successors, (730), 549 states have internal predecessors, (730), 77 states have call successors, (77), 26 states have call predecessors, (77), 31 states have return successors, (88), 76 states have call predecessors, (88), 71 states have call successors, (88) [2022-07-14 07:05:04,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 895 transitions. [2022-07-14 07:05:04,819 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 895 transitions. Word has length 44 [2022-07-14 07:05:04,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:04,819 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 895 transitions. [2022-07-14 07:05:04,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:04,820 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 895 transitions. [2022-07-14 07:05:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:04,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:04,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:04,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-14 07:05:04,824 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:04,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1307777067, now seen corresponding path program 1 times [2022-07-14 07:05:04,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:04,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805331872] [2022-07-14 07:05:04,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:04,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:04,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:04,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805331872] [2022-07-14 07:05:04,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805331872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:04,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:04,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:04,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962998923] [2022-07-14 07:05:04,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:04,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:04,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:04,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:04,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:04,867 INFO L87 Difference]: Start difference. First operand 652 states and 895 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:05,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,169 INFO L93 Difference]: Finished difference Result 703 states and 999 transitions. [2022-07-14 07:05:05,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:05,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-07-14 07:05:05,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,172 INFO L225 Difference]: With dead ends: 703 [2022-07-14 07:05:05,172 INFO L226 Difference]: Without dead ends: 703 [2022-07-14 07:05:05,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:05,173 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 225 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:05,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1842 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2022-07-14 07:05:05,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 659. [2022-07-14 07:05:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 548 states have (on average 1.344890510948905) internal successors, (737), 555 states have internal predecessors, (737), 78 states have call successors, (78), 26 states have call predecessors, (78), 32 states have return successors, (95), 77 states have call predecessors, (95), 72 states have call successors, (95) [2022-07-14 07:05:05,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 910 transitions. [2022-07-14 07:05:05,182 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 910 transitions. Word has length 45 [2022-07-14 07:05:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,182 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 910 transitions. [2022-07-14 07:05:05,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 910 transitions. [2022-07-14 07:05:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:05,184 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:05,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-14 07:05:05,184 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1817250157, now seen corresponding path program 1 times [2022-07-14 07:05:05,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840702258] [2022-07-14 07:05:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:05,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:05,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840702258] [2022-07-14 07:05:05,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840702258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:05,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:05,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:05,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221784152] [2022-07-14 07:05:05,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:05,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:05,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:05,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:05,237 INFO L87 Difference]: Start difference. First operand 659 states and 910 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:05,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,571 INFO L93 Difference]: Finished difference Result 694 states and 975 transitions. [2022-07-14 07:05:05,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:05,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-07-14 07:05:05,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,573 INFO L225 Difference]: With dead ends: 694 [2022-07-14 07:05:05,573 INFO L226 Difference]: Without dead ends: 677 [2022-07-14 07:05:05,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:05,574 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 161 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3814 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:05,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 3814 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:05,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-07-14 07:05:05,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 657. [2022-07-14 07:05:05,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 547 states have (on average 1.3436928702010968) internal successors, (735), 554 states have internal predecessors, (735), 77 states have call successors, (77), 26 states have call predecessors, (77), 32 states have return successors, (94), 76 states have call predecessors, (94), 71 states have call successors, (94) [2022-07-14 07:05:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 906 transitions. [2022-07-14 07:05:05,591 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 906 transitions. Word has length 45 [2022-07-14 07:05:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,591 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 906 transitions. [2022-07-14 07:05:05,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:05,591 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 906 transitions. [2022-07-14 07:05:05,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:05,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:05,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-14 07:05:05,596 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1530884490, now seen corresponding path program 1 times [2022-07-14 07:05:05,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409946501] [2022-07-14 07:05:05,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:05,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:05,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409946501] [2022-07-14 07:05:05,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409946501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:05,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:05,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:05,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153330912] [2022-07-14 07:05:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:05,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:05,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:05,651 INFO L87 Difference]: Start difference. First operand 657 states and 906 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:05,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,904 INFO L93 Difference]: Finished difference Result 701 states and 985 transitions. [2022-07-14 07:05:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:05,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-14 07:05:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,917 INFO L225 Difference]: With dead ends: 701 [2022-07-14 07:05:05,917 INFO L226 Difference]: Without dead ends: 669 [2022-07-14 07:05:05,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:05,918 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 166 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 3532 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:05,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 3532 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:05,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2022-07-14 07:05:05,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 649. [2022-07-14 07:05:05,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 541 states have (on average 1.3364140480591498) internal successors, (723), 548 states have internal predecessors, (723), 75 states have call successors, (75), 26 states have call predecessors, (75), 32 states have return successors, (92), 74 states have call predecessors, (92), 69 states have call successors, (92) [2022-07-14 07:05:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 890 transitions. [2022-07-14 07:05:05,927 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 890 transitions. Word has length 45 [2022-07-14 07:05:05,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,927 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 890 transitions. [2022-07-14 07:05:05,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 890 transitions. [2022-07-14 07:05:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-14 07:05:05,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:05,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-14 07:05:05,929 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash 877591917, now seen corresponding path program 1 times [2022-07-14 07:05:05,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677090501] [2022-07-14 07:05:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:06,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677090501] [2022-07-14 07:05:06,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677090501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:06,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40180923] [2022-07-14 07:05:06,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:06,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:06,049 INFO L87 Difference]: Start difference. First operand 649 states and 890 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,651 INFO L93 Difference]: Finished difference Result 681 states and 952 transitions. [2022-07-14 07:05:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:06,651 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-07-14 07:05:06,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,653 INFO L225 Difference]: With dead ends: 681 [2022-07-14 07:05:06,653 INFO L226 Difference]: Without dead ends: 666 [2022-07-14 07:05:06,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:06,654 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 110 mSDsluCounter, 3773 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4317 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:06,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-07-14 07:05:06,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 646. [2022-07-14 07:05:06,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 539 states have (on average 1.3358070500927643) internal successors, (720), 546 states have internal predecessors, (720), 74 states have call successors, (74), 26 states have call predecessors, (74), 32 states have return successors, (91), 73 states have call predecessors, (91), 68 states have call successors, (91) [2022-07-14 07:05:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 885 transitions. [2022-07-14 07:05:06,662 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 885 transitions. Word has length 46 [2022-07-14 07:05:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,662 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 885 transitions. [2022-07-14 07:05:06,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 885 transitions. [2022-07-14 07:05:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-14 07:05:06,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:06,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-14 07:05:06,664 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1506824031, now seen corresponding path program 1 times [2022-07-14 07:05:06,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081602970] [2022-07-14 07:05:06,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 07:05:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:06,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081602970] [2022-07-14 07:05:06,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081602970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:06,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923311407] [2022-07-14 07:05:06,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:06,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:06,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:06,718 INFO L87 Difference]: Start difference. First operand 646 states and 885 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,964 INFO L93 Difference]: Finished difference Result 678 states and 966 transitions. [2022-07-14 07:05:06,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:06,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-07-14 07:05:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,967 INFO L225 Difference]: With dead ends: 678 [2022-07-14 07:05:06,967 INFO L226 Difference]: Without dead ends: 676 [2022-07-14 07:05:06,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:06,968 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 187 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2309 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 2309 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:06,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-07-14 07:05:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 650. [2022-07-14 07:05:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 541 states have (on average 1.33456561922366) internal successors, (722), 550 states have internal predecessors, (722), 74 states have call successors, (74), 26 states have call predecessors, (74), 34 states have return successors, (107), 73 states have call predecessors, (107), 68 states have call successors, (107) [2022-07-14 07:05:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 903 transitions. [2022-07-14 07:05:06,978 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 903 transitions. Word has length 46 [2022-07-14 07:05:06,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,978 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 903 transitions. [2022-07-14 07:05:06,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 903 transitions. [2022-07-14 07:05:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:06,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:06,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-14 07:05:06,980 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash -495181895, now seen corresponding path program 1 times [2022-07-14 07:05:06,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632846000] [2022-07-14 07:05:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:07,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:07,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632846000] [2022-07-14 07:05:07,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632846000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:07,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:07,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790648399] [2022-07-14 07:05:07,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:07,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:07,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:07,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:07,118 INFO L87 Difference]: Start difference. First operand 650 states and 903 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:07,795 INFO L93 Difference]: Finished difference Result 682 states and 965 transitions. [2022-07-14 07:05:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:07,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-07-14 07:05:07,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:07,798 INFO L225 Difference]: With dead ends: 682 [2022-07-14 07:05:07,798 INFO L226 Difference]: Without dead ends: 661 [2022-07-14 07:05:07,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:07,799 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 123 mSDsluCounter, 4170 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4712 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:07,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4712 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:07,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-14 07:05:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 641. [2022-07-14 07:05:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 534 states have (on average 1.3352059925093633) internal successors, (713), 543 states have internal predecessors, (713), 72 states have call successors, (72), 26 states have call predecessors, (72), 34 states have return successors, (105), 71 states have call predecessors, (105), 66 states have call successors, (105) [2022-07-14 07:05:07,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 890 transitions. [2022-07-14 07:05:07,812 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 890 transitions. Word has length 54 [2022-07-14 07:05:07,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:07,812 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 890 transitions. [2022-07-14 07:05:07,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:07,813 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 890 transitions. [2022-07-14 07:05:07,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:07,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:07,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:07,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-14 07:05:07,815 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:07,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:07,815 INFO L85 PathProgramCache]: Analyzing trace with hash -201116362, now seen corresponding path program 1 times [2022-07-14 07:05:07,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:07,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61037266] [2022-07-14 07:05:07,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:07,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:07,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:07,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61037266] [2022-07-14 07:05:07,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61037266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:07,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:07,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:07,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097400737] [2022-07-14 07:05:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:07,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:07,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:07,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:07,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:07,954 INFO L87 Difference]: Start difference. First operand 641 states and 890 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:08,569 INFO L93 Difference]: Finished difference Result 673 states and 951 transitions. [2022-07-14 07:05:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:08,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-07-14 07:05:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:08,573 INFO L225 Difference]: With dead ends: 673 [2022-07-14 07:05:08,573 INFO L226 Difference]: Without dead ends: 658 [2022-07-14 07:05:08,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:08,574 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 123 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4580 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:08,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4580 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-07-14 07:05:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 638. [2022-07-14 07:05:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 532 states have (on average 1.3345864661654134) internal successors, (710), 541 states have internal predecessors, (710), 71 states have call successors, (71), 26 states have call predecessors, (71), 34 states have return successors, (104), 70 states have call predecessors, (104), 65 states have call successors, (104) [2022-07-14 07:05:08,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 885 transitions. [2022-07-14 07:05:08,588 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 885 transitions. Word has length 47 [2022-07-14 07:05:08,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:08,588 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 885 transitions. [2022-07-14 07:05:08,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 885 transitions. [2022-07-14 07:05:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:05:08,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:08,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:08,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-14 07:05:08,591 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:08,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:08,591 INFO L85 PathProgramCache]: Analyzing trace with hash -109408180, now seen corresponding path program 1 times [2022-07-14 07:05:08,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:08,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015382831] [2022-07-14 07:05:08,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:08,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:08,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:08,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015382831] [2022-07-14 07:05:08,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015382831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:08,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:08,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:08,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810424407] [2022-07-14 07:05:08,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:08,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:08,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:08,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:08,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:08,652 INFO L87 Difference]: Start difference. First operand 638 states and 885 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:08,987 INFO L93 Difference]: Finished difference Result 749 states and 1045 transitions. [2022-07-14 07:05:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:08,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-14 07:05:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:08,993 INFO L225 Difference]: With dead ends: 749 [2022-07-14 07:05:08,997 INFO L226 Difference]: Without dead ends: 749 [2022-07-14 07:05:08,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:08,997 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 241 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:08,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 1631 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-07-14 07:05:09,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 702. [2022-07-14 07:05:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 586 states have (on average 1.3327645051194539) internal successors, (781), 595 states have internal predecessors, (781), 74 states have call successors, (74), 30 states have call predecessors, (74), 41 states have return successors, (113), 76 states have call predecessors, (113), 69 states have call successors, (113) [2022-07-14 07:05:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 968 transitions. [2022-07-14 07:05:09,013 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 968 transitions. Word has length 50 [2022-07-14 07:05:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:09,013 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 968 transitions. [2022-07-14 07:05:09,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 968 transitions. [2022-07-14 07:05:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:05:09,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:09,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:09,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-14 07:05:09,015 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:09,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:09,015 INFO L85 PathProgramCache]: Analyzing trace with hash -642740247, now seen corresponding path program 1 times [2022-07-14 07:05:09,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:09,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014837855] [2022-07-14 07:05:09,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:09,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:09,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:09,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014837855] [2022-07-14 07:05:09,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014837855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:09,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:09,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:09,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500354013] [2022-07-14 07:05:09,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:09,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:09,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:09,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:09,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:09,109 INFO L87 Difference]: Start difference. First operand 702 states and 968 transitions. Second operand has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:09,947 INFO L93 Difference]: Finished difference Result 763 states and 1060 transitions. [2022-07-14 07:05:09,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:09,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2022-07-14 07:05:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:09,950 INFO L225 Difference]: With dead ends: 763 [2022-07-14 07:05:09,950 INFO L226 Difference]: Without dead ends: 746 [2022-07-14 07:05:09,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:09,950 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 245 mSDsluCounter, 4431 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 4944 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:09,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 4944 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:09,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-14 07:05:09,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 700. [2022-07-14 07:05:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 585 states have (on average 1.3316239316239316) internal successors, (779), 594 states have internal predecessors, (779), 73 states have call successors, (73), 30 states have call predecessors, (73), 41 states have return successors, (112), 75 states have call predecessors, (112), 68 states have call successors, (112) [2022-07-14 07:05:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 964 transitions. [2022-07-14 07:05:09,959 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 964 transitions. Word has length 51 [2022-07-14 07:05:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:09,959 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 964 transitions. [2022-07-14 07:05:09,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 964 transitions. [2022-07-14 07:05:09,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:05:09,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:09,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:09,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-14 07:05:09,961 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:09,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:09,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1366311556, now seen corresponding path program 1 times [2022-07-14 07:05:09,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:09,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638124188] [2022-07-14 07:05:09,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:09,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:10,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:10,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638124188] [2022-07-14 07:05:10,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638124188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:10,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:10,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:10,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299099674] [2022-07-14 07:05:10,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:10,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:10,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:10,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:10,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:10,066 INFO L87 Difference]: Start difference. First operand 700 states and 964 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:10,760 INFO L93 Difference]: Finished difference Result 761 states and 1056 transitions. [2022-07-14 07:05:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:10,761 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2022-07-14 07:05:10,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:10,762 INFO L225 Difference]: With dead ends: 761 [2022-07-14 07:05:10,763 INFO L226 Difference]: Without dead ends: 744 [2022-07-14 07:05:10,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:10,763 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 247 mSDsluCounter, 4018 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:10,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 4528 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:10,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-07-14 07:05:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 698. [2022-07-14 07:05:10,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 584 states have (on average 1.3304794520547945) internal successors, (777), 593 states have internal predecessors, (777), 72 states have call successors, (72), 30 states have call predecessors, (72), 41 states have return successors, (111), 74 states have call predecessors, (111), 67 states have call successors, (111) [2022-07-14 07:05:10,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 960 transitions. [2022-07-14 07:05:10,772 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 960 transitions. Word has length 52 [2022-07-14 07:05:10,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:10,772 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 960 transitions. [2022-07-14 07:05:10,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 10 states have internal predecessors, (45), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 960 transitions. [2022-07-14 07:05:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:10,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:10,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:10,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-14 07:05:10,774 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:10,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:10,774 INFO L85 PathProgramCache]: Analyzing trace with hash 484610396, now seen corresponding path program 1 times [2022-07-14 07:05:10,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:10,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664070184] [2022-07-14 07:05:10,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:10,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:10,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:10,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664070184] [2022-07-14 07:05:10,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664070184] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:10,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:10,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:10,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009725607] [2022-07-14 07:05:10,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:10,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:10,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:10,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:10,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:10,856 INFO L87 Difference]: Start difference. First operand 698 states and 960 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:11,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:11,474 INFO L93 Difference]: Finished difference Result 743 states and 1035 transitions. [2022-07-14 07:05:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-14 07:05:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:11,476 INFO L225 Difference]: With dead ends: 743 [2022-07-14 07:05:11,476 INFO L226 Difference]: Without dead ends: 726 [2022-07-14 07:05:11,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2022-07-14 07:05:11,476 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 235 mSDsluCounter, 3721 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 4215 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:11,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 4215 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:11,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-07-14 07:05:11,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 696. [2022-07-14 07:05:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 583 states have (on average 1.3293310463121784) internal successors, (775), 592 states have internal predecessors, (775), 71 states have call successors, (71), 30 states have call predecessors, (71), 41 states have return successors, (110), 73 states have call predecessors, (110), 66 states have call successors, (110) [2022-07-14 07:05:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 956 transitions. [2022-07-14 07:05:11,485 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 956 transitions. Word has length 48 [2022-07-14 07:05:11,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:11,485 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 956 transitions. [2022-07-14 07:05:11,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:11,486 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 956 transitions. [2022-07-14 07:05:11,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:11,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:11,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:11,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-14 07:05:11,487 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:11,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:11,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2066330974, now seen corresponding path program 1 times [2022-07-14 07:05:11,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:11,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693122085] [2022-07-14 07:05:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:11,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:05:11,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:11,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:11,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693122085] [2022-07-14 07:05:11,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693122085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:11,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:11,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:11,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843644901] [2022-07-14 07:05:11,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:11,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:11,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:11,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:11,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:11,514 INFO L87 Difference]: Start difference. First operand 696 states and 956 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:11,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:11,687 INFO L93 Difference]: Finished difference Result 655 states and 880 transitions. [2022-07-14 07:05:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:11,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-14 07:05:11,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:11,689 INFO L225 Difference]: With dead ends: 655 [2022-07-14 07:05:11,689 INFO L226 Difference]: Without dead ends: 652 [2022-07-14 07:05:11,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:11,690 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 97 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:11,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1550 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:11,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-07-14 07:05:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 623. [2022-07-14 07:05:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 526 states have (on average 1.3250950570342206) internal successors, (697), 533 states have internal predecessors, (697), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-14 07:05:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 833 transitions. [2022-07-14 07:05:11,696 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 833 transitions. Word has length 48 [2022-07-14 07:05:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:11,696 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 833 transitions. [2022-07-14 07:05:11,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 833 transitions. [2022-07-14 07:05:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:11,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:11,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:11,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-14 07:05:11,698 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:11,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:11,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1741355878, now seen corresponding path program 1 times [2022-07-14 07:05:11,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:11,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337565004] [2022-07-14 07:05:11,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:11,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:11,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337565004] [2022-07-14 07:05:11,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337565004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:11,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:11,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:11,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331654059] [2022-07-14 07:05:11,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:11,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:11,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:11,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:11,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:11,808 INFO L87 Difference]: Start difference. First operand 623 states and 833 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:12,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:12,371 INFO L93 Difference]: Finished difference Result 647 states and 864 transitions. [2022-07-14 07:05:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:12,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-14 07:05:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:12,373 INFO L225 Difference]: With dead ends: 647 [2022-07-14 07:05:12,373 INFO L226 Difference]: Without dead ends: 632 [2022-07-14 07:05:12,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:12,373 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 116 mSDsluCounter, 3772 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4259 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:12,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4259 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:12,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-07-14 07:05:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 620. [2022-07-14 07:05:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 524 states have (on average 1.3244274809160306) internal successors, (694), 531 states have internal predecessors, (694), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (73), 61 states have call predecessors, (73), 56 states have call successors, (73) [2022-07-14 07:05:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 828 transitions. [2022-07-14 07:05:12,383 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 828 transitions. Word has length 48 [2022-07-14 07:05:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:12,383 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 828 transitions. [2022-07-14 07:05:12,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 828 transitions. [2022-07-14 07:05:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:05:12,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:12,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:12,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-14 07:05:12,385 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:12,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:12,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1797533827, now seen corresponding path program 1 times [2022-07-14 07:05:12,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:12,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508296477] [2022-07-14 07:05:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:12,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 07:05:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:12,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:12,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508296477] [2022-07-14 07:05:12,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508296477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:12,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:12,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:12,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935269228] [2022-07-14 07:05:12,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:12,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:12,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:12,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:12,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:12,430 INFO L87 Difference]: Start difference. First operand 620 states and 828 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:12,728 INFO L93 Difference]: Finished difference Result 688 states and 913 transitions. [2022-07-14 07:05:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-07-14 07:05:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:12,730 INFO L225 Difference]: With dead ends: 688 [2022-07-14 07:05:12,730 INFO L226 Difference]: Without dead ends: 688 [2022-07-14 07:05:12,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:12,731 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 260 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:12,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 2383 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:12,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-14 07:05:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 626. [2022-07-14 07:05:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 529 states have (on average 1.3232514177693762) internal successors, (700), 536 states have internal predecessors, (700), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-14 07:05:12,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 836 transitions. [2022-07-14 07:05:12,739 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 836 transitions. Word has length 50 [2022-07-14 07:05:12,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:12,739 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 836 transitions. [2022-07-14 07:05:12,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:12,739 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 836 transitions. [2022-07-14 07:05:12,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:05:12,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:12,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:12,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-14 07:05:12,741 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:12,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:12,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1910633636, now seen corresponding path program 1 times [2022-07-14 07:05:12,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:12,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282278050] [2022-07-14 07:05:12,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:12,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:12,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:12,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282278050] [2022-07-14 07:05:12,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282278050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:12,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:12,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:12,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000982597] [2022-07-14 07:05:12,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:12,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:12,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:12,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:12,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:12,805 INFO L87 Difference]: Start difference. First operand 626 states and 836 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:05:13,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:13,158 INFO L93 Difference]: Finished difference Result 638 states and 853 transitions. [2022-07-14 07:05:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:13,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2022-07-14 07:05:13,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:13,161 INFO L225 Difference]: With dead ends: 638 [2022-07-14 07:05:13,161 INFO L226 Difference]: Without dead ends: 638 [2022-07-14 07:05:13,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:13,161 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 123 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:13,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1691 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:13,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-07-14 07:05:13,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 626. [2022-07-14 07:05:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 529 states have (on average 1.3194706994328922) internal successors, (698), 536 states have internal predecessors, (698), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-14 07:05:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 834 transitions. [2022-07-14 07:05:13,170 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 834 transitions. Word has length 53 [2022-07-14 07:05:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:13,170 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 834 transitions. [2022-07-14 07:05:13,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:05:13,177 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 834 transitions. [2022-07-14 07:05:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:05:13,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:13,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:13,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-14 07:05:13,179 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:13,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1007488154, now seen corresponding path program 1 times [2022-07-14 07:05:13,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:13,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838908771] [2022-07-14 07:05:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:13,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 07:05:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 07:05:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:13,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:13,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838908771] [2022-07-14 07:05:13,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838908771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:13,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:13,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:13,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879369537] [2022-07-14 07:05:13,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:13,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:13,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:13,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:13,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:13,237 INFO L87 Difference]: Start difference. First operand 626 states and 834 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:13,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:13,627 INFO L93 Difference]: Finished difference Result 669 states and 890 transitions. [2022-07-14 07:05:13,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:13,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-14 07:05:13,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:13,629 INFO L225 Difference]: With dead ends: 669 [2022-07-14 07:05:13,629 INFO L226 Difference]: Without dead ends: 618 [2022-07-14 07:05:13,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:13,630 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 185 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:13,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 3101 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-07-14 07:05:13,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 599. [2022-07-14 07:05:13,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 507 states have (on average 1.3057199211045365) internal successors, (662), 514 states have internal predecessors, (662), 57 states have call successors, (57), 27 states have call predecessors, (57), 34 states have return successors, (68), 57 states have call predecessors, (68), 52 states have call successors, (68) [2022-07-14 07:05:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 787 transitions. [2022-07-14 07:05:13,638 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 787 transitions. Word has length 51 [2022-07-14 07:05:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:13,638 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 787 transitions. [2022-07-14 07:05:13,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 787 transitions. [2022-07-14 07:05:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:05:13,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:13,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:13,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-14 07:05:13,641 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1364251108, now seen corresponding path program 1 times [2022-07-14 07:05:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:13,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347382601] [2022-07-14 07:05:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 07:05:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 07:05:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:13,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:13,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347382601] [2022-07-14 07:05:13,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347382601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:13,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:13,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:13,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829471133] [2022-07-14 07:05:13,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:13,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:13,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:13,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:13,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:13,687 INFO L87 Difference]: Start difference. First operand 599 states and 787 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:13,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:13,922 INFO L93 Difference]: Finished difference Result 605 states and 794 transitions. [2022-07-14 07:05:13,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:13,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-14 07:05:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:13,924 INFO L225 Difference]: With dead ends: 605 [2022-07-14 07:05:13,924 INFO L226 Difference]: Without dead ends: 605 [2022-07-14 07:05:13,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:13,925 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 175 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:13,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1763 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-07-14 07:05:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 589. [2022-07-14 07:05:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 499 states have (on average 1.3026052104208417) internal successors, (650), 506 states have internal predecessors, (650), 55 states have call successors, (55), 27 states have call predecessors, (55), 34 states have return successors, (66), 55 states have call predecessors, (66), 50 states have call successors, (66) [2022-07-14 07:05:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 771 transitions. [2022-07-14 07:05:13,934 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 771 transitions. Word has length 51 [2022-07-14 07:05:13,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:13,934 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 771 transitions. [2022-07-14 07:05:13,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 771 transitions. [2022-07-14 07:05:13,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:05:13,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:13,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:13,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-14 07:05:13,936 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:13,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:13,937 INFO L85 PathProgramCache]: Analyzing trace with hash 445712646, now seen corresponding path program 1 times [2022-07-14 07:05:13,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:13,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610724714] [2022-07-14 07:05:13,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:13,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 07:05:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:13,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:13,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610724714] [2022-07-14 07:05:13,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610724714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:13,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:13,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:13,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288393069] [2022-07-14 07:05:13,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:13,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:13,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:13,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:13,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:13,985 INFO L87 Difference]: Start difference. First operand 589 states and 771 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:14,218 INFO L93 Difference]: Finished difference Result 601 states and 788 transitions. [2022-07-14 07:05:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:14,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-07-14 07:05:14,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:14,220 INFO L225 Difference]: With dead ends: 601 [2022-07-14 07:05:14,220 INFO L226 Difference]: Without dead ends: 596 [2022-07-14 07:05:14,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:14,221 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 171 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:14,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1767 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:14,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-07-14 07:05:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 584. [2022-07-14 07:05:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 495 states have (on average 1.303030303030303) internal successors, (645), 502 states have internal predecessors, (645), 54 states have call successors, (54), 27 states have call predecessors, (54), 34 states have return successors, (65), 54 states have call predecessors, (65), 49 states have call successors, (65) [2022-07-14 07:05:14,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 764 transitions. [2022-07-14 07:05:14,229 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 764 transitions. Word has length 52 [2022-07-14 07:05:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:14,229 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 764 transitions. [2022-07-14 07:05:14,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 764 transitions. [2022-07-14 07:05:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:05:14,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:14,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:14,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-14 07:05:14,230 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:14,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:14,231 INFO L85 PathProgramCache]: Analyzing trace with hash 432060647, now seen corresponding path program 1 times [2022-07-14 07:05:14,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:14,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805383883] [2022-07-14 07:05:14,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:14,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:14,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:14,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805383883] [2022-07-14 07:05:14,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805383883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:14,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:14,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:14,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520684068] [2022-07-14 07:05:14,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:14,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:14,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:14,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:14,275 INFO L87 Difference]: Start difference. First operand 584 states and 764 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:14,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:14,542 INFO L93 Difference]: Finished difference Result 700 states and 916 transitions. [2022-07-14 07:05:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:14,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 52 [2022-07-14 07:05:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:14,544 INFO L225 Difference]: With dead ends: 700 [2022-07-14 07:05:14,544 INFO L226 Difference]: Without dead ends: 700 [2022-07-14 07:05:14,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:14,544 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 220 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:14,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1337 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-07-14 07:05:14,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 616. [2022-07-14 07:05:14,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 525 states have (on average 1.2971428571428572) internal successors, (681), 532 states have internal predecessors, (681), 54 states have call successors, (54), 27 states have call predecessors, (54), 36 states have return successors, (67), 56 states have call predecessors, (67), 49 states have call successors, (67) [2022-07-14 07:05:14,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 802 transitions. [2022-07-14 07:05:14,558 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 802 transitions. Word has length 52 [2022-07-14 07:05:14,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:14,558 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 802 transitions. [2022-07-14 07:05:14,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 802 transitions. [2022-07-14 07:05:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:05:14,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:14,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:14,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-14 07:05:14,560 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:14,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash 953754427, now seen corresponding path program 1 times [2022-07-14 07:05:14,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:14,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498631107] [2022-07-14 07:05:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:14,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:14,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:14,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498631107] [2022-07-14 07:05:14,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498631107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:14,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:14,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182316711] [2022-07-14 07:05:14,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:14,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:14,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:14,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:14,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:14,617 INFO L87 Difference]: Start difference. First operand 616 states and 802 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:15,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:15,083 INFO L93 Difference]: Finished difference Result 697 states and 910 transitions. [2022-07-14 07:05:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:15,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:05:15,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:15,085 INFO L225 Difference]: With dead ends: 697 [2022-07-14 07:05:15,085 INFO L226 Difference]: Without dead ends: 697 [2022-07-14 07:05:15,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:15,086 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 725 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1544 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:15,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1544 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-07-14 07:05:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 616. [2022-07-14 07:05:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 525 states have (on average 1.2933333333333332) internal successors, (679), 532 states have internal predecessors, (679), 54 states have call successors, (54), 27 states have call predecessors, (54), 36 states have return successors, (67), 56 states have call predecessors, (67), 49 states have call successors, (67) [2022-07-14 07:05:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 800 transitions. [2022-07-14 07:05:15,093 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 800 transitions. Word has length 53 [2022-07-14 07:05:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:15,093 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 800 transitions. [2022-07-14 07:05:15,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:15,094 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 800 transitions. [2022-07-14 07:05:15,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 07:05:15,095 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:15,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:15,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-14 07:05:15,095 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:15,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:15,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1335081080, now seen corresponding path program 1 times [2022-07-14 07:05:15,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:15,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733045357] [2022-07-14 07:05:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:15,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 07:05:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:15,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:15,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733045357] [2022-07-14 07:05:15,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733045357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:15,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:15,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:15,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954254521] [2022-07-14 07:05:15,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:15,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:15,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:15,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:15,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:15,211 INFO L87 Difference]: Start difference. First operand 616 states and 800 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-14 07:05:15,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:15,913 INFO L93 Difference]: Finished difference Result 668 states and 864 transitions. [2022-07-14 07:05:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:15,914 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2022-07-14 07:05:15,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:15,915 INFO L225 Difference]: With dead ends: 668 [2022-07-14 07:05:15,915 INFO L226 Difference]: Without dead ends: 651 [2022-07-14 07:05:15,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:15,916 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 243 mSDsluCounter, 3693 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:15,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 4133 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-07-14 07:05:15,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 614. [2022-07-14 07:05:15,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 524 states have (on average 1.2919847328244274) internal successors, (677), 531 states have internal predecessors, (677), 53 states have call successors, (53), 27 states have call predecessors, (53), 36 states have return successors, (66), 55 states have call predecessors, (66), 48 states have call successors, (66) [2022-07-14 07:05:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 796 transitions. [2022-07-14 07:05:15,923 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 796 transitions. Word has length 59 [2022-07-14 07:05:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:15,923 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 796 transitions. [2022-07-14 07:05:15,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-14 07:05:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 796 transitions. [2022-07-14 07:05:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 07:05:15,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:15,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:15,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-14 07:05:15,925 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:15,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1347488490, now seen corresponding path program 1 times [2022-07-14 07:05:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:15,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169498141] [2022-07-14 07:05:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:05:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:16,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:16,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169498141] [2022-07-14 07:05:16,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169498141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:16,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:16,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-14 07:05:16,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711226602] [2022-07-14 07:05:16,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:16,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-14 07:05:16,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:16,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-14 07:05:16,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:16,045 INFO L87 Difference]: Start difference. First operand 614 states and 796 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:16,726 INFO L93 Difference]: Finished difference Result 643 states and 832 transitions. [2022-07-14 07:05:16,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 07:05:16,726 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2022-07-14 07:05:16,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:16,727 INFO L225 Difference]: With dead ends: 643 [2022-07-14 07:05:16,727 INFO L226 Difference]: Without dead ends: 622 [2022-07-14 07:05:16,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2022-07-14 07:05:16,728 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 325 mSDsluCounter, 3593 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 4007 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:16,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 4007 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:16,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-07-14 07:05:16,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 610. [2022-07-14 07:05:16,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 521 states have (on average 1.2917466410748562) internal successors, (673), 528 states have internal predecessors, (673), 52 states have call successors, (52), 27 states have call predecessors, (52), 36 states have return successors, (65), 54 states have call predecessors, (65), 47 states have call successors, (65) [2022-07-14 07:05:16,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 790 transitions. [2022-07-14 07:05:16,735 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 790 transitions. Word has length 55 [2022-07-14 07:05:16,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:16,735 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 790 transitions. [2022-07-14 07:05:16,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:16,735 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 790 transitions. [2022-07-14 07:05:16,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:16,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:16,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:16,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-14 07:05:16,739 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:16,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:16,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2057071680, now seen corresponding path program 1 times [2022-07-14 07:05:16,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:16,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443342337] [2022-07-14 07:05:16,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:16,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 07:05:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:16,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:16,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443342337] [2022-07-14 07:05:16,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443342337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:16,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:16,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:16,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675557935] [2022-07-14 07:05:16,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:16,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:16,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:16,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:16,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:16,793 INFO L87 Difference]: Start difference. First operand 610 states and 790 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:17,003 INFO L93 Difference]: Finished difference Result 622 states and 807 transitions. [2022-07-14 07:05:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:17,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:05:17,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:17,004 INFO L225 Difference]: With dead ends: 622 [2022-07-14 07:05:17,004 INFO L226 Difference]: Without dead ends: 617 [2022-07-14 07:05:17,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:17,005 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 171 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:17,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1691 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-07-14 07:05:17,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 605. [2022-07-14 07:05:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 517 states have (on average 1.2920696324951644) internal successors, (668), 524 states have internal predecessors, (668), 51 states have call successors, (51), 27 states have call predecessors, (51), 36 states have return successors, (64), 53 states have call predecessors, (64), 46 states have call successors, (64) [2022-07-14 07:05:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 783 transitions. [2022-07-14 07:05:17,011 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 783 transitions. Word has length 54 [2022-07-14 07:05:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:17,012 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 783 transitions. [2022-07-14 07:05:17,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 783 transitions. [2022-07-14 07:05:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:17,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:17,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:17,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-14 07:05:17,013 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:17,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:17,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1301879028, now seen corresponding path program 1 times [2022-07-14 07:05:17,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:17,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455343325] [2022-07-14 07:05:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:17,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:17,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:17,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455343325] [2022-07-14 07:05:17,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455343325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:17,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:17,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:17,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446900124] [2022-07-14 07:05:17,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:17,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:17,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:17,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:17,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:17,082 INFO L87 Difference]: Start difference. First operand 605 states and 783 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:17,447 INFO L93 Difference]: Finished difference Result 637 states and 823 transitions. [2022-07-14 07:05:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:17,448 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:05:17,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:17,449 INFO L225 Difference]: With dead ends: 637 [2022-07-14 07:05:17,449 INFO L226 Difference]: Without dead ends: 614 [2022-07-14 07:05:17,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:17,449 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 155 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:17,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 3348 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:17,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-07-14 07:05:17,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 602. [2022-07-14 07:05:17,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 515 states have (on average 1.2912621359223302) internal successors, (665), 522 states have internal predecessors, (665), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2022-07-14 07:05:17,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 778 transitions. [2022-07-14 07:05:17,456 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 778 transitions. Word has length 54 [2022-07-14 07:05:17,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:17,456 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 778 transitions. [2022-07-14 07:05:17,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 778 transitions. [2022-07-14 07:05:17,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:17,457 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:17,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:17,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-14 07:05:17,458 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:17,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:17,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1138075636, now seen corresponding path program 1 times [2022-07-14 07:05:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:17,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636737164] [2022-07-14 07:05:17,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:17,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:17,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:17,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636737164] [2022-07-14 07:05:17,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636737164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:17,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:17,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527540849] [2022-07-14 07:05:17,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:17,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:17,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:17,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:17,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:17,511 INFO L87 Difference]: Start difference. First operand 602 states and 778 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:17,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:17,892 INFO L93 Difference]: Finished difference Result 683 states and 886 transitions. [2022-07-14 07:05:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:17,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:05:17,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:17,894 INFO L225 Difference]: With dead ends: 683 [2022-07-14 07:05:17,894 INFO L226 Difference]: Without dead ends: 683 [2022-07-14 07:05:17,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:17,895 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 774 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:17,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1212 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-07-14 07:05:17,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 599. [2022-07-14 07:05:17,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 512 states have (on average 1.2890625) internal successors, (660), 519 states have internal predecessors, (660), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2022-07-14 07:05:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 773 transitions. [2022-07-14 07:05:17,903 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 773 transitions. Word has length 54 [2022-07-14 07:05:17,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:17,903 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 773 transitions. [2022-07-14 07:05:17,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:17,903 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 773 transitions. [2022-07-14 07:05:17,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:17,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:17,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:17,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-14 07:05:17,904 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1137798806, now seen corresponding path program 1 times [2022-07-14 07:05:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:17,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662432484] [2022-07-14 07:05:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:17,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:18,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:18,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662432484] [2022-07-14 07:05:18,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662432484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:18,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:18,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:18,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331359260] [2022-07-14 07:05:18,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:18,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:18,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:18,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:18,026 INFO L87 Difference]: Start difference. First operand 599 states and 773 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:18,618 INFO L93 Difference]: Finished difference Result 618 states and 797 transitions. [2022-07-14 07:05:18,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:18,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-07-14 07:05:18,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:18,620 INFO L225 Difference]: With dead ends: 618 [2022-07-14 07:05:18,620 INFO L226 Difference]: Without dead ends: 593 [2022-07-14 07:05:18,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:18,620 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 219 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2739 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:18,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 2739 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-07-14 07:05:18,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2022-07-14 07:05:18,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 491 states have (on average 1.2830957230142566) internal successors, (630), 498 states have internal predecessors, (630), 50 states have call successors, (50), 27 states have call predecessors, (50), 35 states have return successors, (62), 51 states have call predecessors, (62), 45 states have call successors, (62) [2022-07-14 07:05:18,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 742 transitions. [2022-07-14 07:05:18,626 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 742 transitions. Word has length 54 [2022-07-14 07:05:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:18,626 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 742 transitions. [2022-07-14 07:05:18,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 742 transitions. [2022-07-14 07:05:18,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:18,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:18,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:18,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-14 07:05:18,628 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:18,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2015257924, now seen corresponding path program 1 times [2022-07-14 07:05:18,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:18,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44579680] [2022-07-14 07:05:18,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:18,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:18,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:18,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44579680] [2022-07-14 07:05:18,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44579680] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:18,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:18,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520008841] [2022-07-14 07:05:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:18,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:18,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:18,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:18,683 INFO L87 Difference]: Start difference. First operand 577 states and 742 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:18,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:18,909 INFO L93 Difference]: Finished difference Result 592 states and 756 transitions. [2022-07-14 07:05:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:18,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-07-14 07:05:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:18,910 INFO L225 Difference]: With dead ends: 592 [2022-07-14 07:05:18,910 INFO L226 Difference]: Without dead ends: 582 [2022-07-14 07:05:18,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:18,911 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 233 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:18,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 960 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:18,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2022-07-14 07:05:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 566. [2022-07-14 07:05:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 481 states have (on average 1.2744282744282744) internal successors, (613), 488 states have internal predecessors, (613), 50 states have call successors, (50), 27 states have call predecessors, (50), 34 states have return successors, (61), 50 states have call predecessors, (61), 45 states have call successors, (61) [2022-07-14 07:05:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 724 transitions. [2022-07-14 07:05:18,917 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 724 transitions. Word has length 54 [2022-07-14 07:05:18,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:18,917 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 724 transitions. [2022-07-14 07:05:18,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:18,918 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 724 transitions. [2022-07-14 07:05:18,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:05:18,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:18,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:18,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-14 07:05:18,919 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:18,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:18,919 INFO L85 PathProgramCache]: Analyzing trace with hash 169253140, now seen corresponding path program 1 times [2022-07-14 07:05:18,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:18,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821300609] [2022-07-14 07:05:18,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:18,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:18,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:18,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821300609] [2022-07-14 07:05:18,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821300609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:18,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:18,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:18,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145686855] [2022-07-14 07:05:18,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:18,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:18,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:18,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:18,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:18,971 INFO L87 Difference]: Start difference. First operand 566 states and 724 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:19,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:19,310 INFO L93 Difference]: Finished difference Result 596 states and 761 transitions. [2022-07-14 07:05:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:19,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-07-14 07:05:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:19,312 INFO L225 Difference]: With dead ends: 596 [2022-07-14 07:05:19,312 INFO L226 Difference]: Without dead ends: 596 [2022-07-14 07:05:19,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:19,312 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 188 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:19,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 2010 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-07-14 07:05:19,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 566. [2022-07-14 07:05:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 481 states have (on average 1.2723492723492724) internal successors, (612), 488 states have internal predecessors, (612), 50 states have call successors, (50), 27 states have call predecessors, (50), 34 states have return successors, (61), 50 states have call predecessors, (61), 45 states have call successors, (61) [2022-07-14 07:05:19,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 723 transitions. [2022-07-14 07:05:19,318 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 723 transitions. Word has length 56 [2022-07-14 07:05:19,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:19,319 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 723 transitions. [2022-07-14 07:05:19,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:19,319 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 723 transitions. [2022-07-14 07:05:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:05:19,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:19,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:19,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-14 07:05:19,320 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash 191885394, now seen corresponding path program 1 times [2022-07-14 07:05:19,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:19,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061086568] [2022-07-14 07:05:19,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:19,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:19,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:19,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061086568] [2022-07-14 07:05:19,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061086568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:19,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:19,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:19,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504389825] [2022-07-14 07:05:19,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:19,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:19,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:19,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:19,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:19,416 INFO L87 Difference]: Start difference. First operand 566 states and 723 transitions. Second operand has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:20,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:20,035 INFO L93 Difference]: Finished difference Result 618 states and 787 transitions. [2022-07-14 07:05:20,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:20,035 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2022-07-14 07:05:20,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:20,037 INFO L225 Difference]: With dead ends: 618 [2022-07-14 07:05:20,037 INFO L226 Difference]: Without dead ends: 591 [2022-07-14 07:05:20,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:20,038 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 350 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 3302 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:20,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 3302 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-14 07:05:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 561. [2022-07-14 07:05:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 477 states have (on average 1.2683438155136268) internal successors, (605), 484 states have internal predecessors, (605), 49 states have call successors, (49), 27 states have call predecessors, (49), 34 states have return successors, (59), 49 states have call predecessors, (59), 44 states have call successors, (59) [2022-07-14 07:05:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 713 transitions. [2022-07-14 07:05:20,046 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 713 transitions. Word has length 56 [2022-07-14 07:05:20,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:20,046 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 713 transitions. [2022-07-14 07:05:20,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.769230769230769) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 713 transitions. [2022-07-14 07:05:20,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:05:20,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:20,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:20,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-14 07:05:20,048 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:20,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1983153674, now seen corresponding path program 1 times [2022-07-14 07:05:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:20,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402412070] [2022-07-14 07:05:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:20,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:20,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:20,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402412070] [2022-07-14 07:05:20,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402412070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:20,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:20,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:20,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475237581] [2022-07-14 07:05:20,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:20,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:20,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:20,113 INFO L87 Difference]: Start difference. First operand 561 states and 713 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:20,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:20,429 INFO L93 Difference]: Finished difference Result 573 states and 730 transitions. [2022-07-14 07:05:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:20,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-07-14 07:05:20,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:20,431 INFO L225 Difference]: With dead ends: 573 [2022-07-14 07:05:20,431 INFO L226 Difference]: Without dead ends: 567 [2022-07-14 07:05:20,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:20,432 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 187 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:20,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1660 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:20,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-07-14 07:05:20,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 555. [2022-07-14 07:05:20,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 472 states have (on average 1.2690677966101696) internal successors, (599), 479 states have internal predecessors, (599), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2022-07-14 07:05:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 705 transitions. [2022-07-14 07:05:20,439 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 705 transitions. Word has length 56 [2022-07-14 07:05:20,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:20,440 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 705 transitions. [2022-07-14 07:05:20,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 705 transitions. [2022-07-14 07:05:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:05:20,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:20,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:20,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-14 07:05:20,442 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:20,442 INFO L85 PathProgramCache]: Analyzing trace with hash 297829050, now seen corresponding path program 1 times [2022-07-14 07:05:20,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:20,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619559349] [2022-07-14 07:05:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:20,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:20,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:20,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619559349] [2022-07-14 07:05:20,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619559349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:20,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:20,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:20,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261581836] [2022-07-14 07:05:20,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:20,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:20,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:20,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:20,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:20,554 INFO L87 Difference]: Start difference. First operand 555 states and 705 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:21,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:21,095 INFO L93 Difference]: Finished difference Result 627 states and 787 transitions. [2022-07-14 07:05:21,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 07:05:21,096 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-07-14 07:05:21,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:21,097 INFO L225 Difference]: With dead ends: 627 [2022-07-14 07:05:21,097 INFO L226 Difference]: Without dead ends: 606 [2022-07-14 07:05:21,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:05:21,098 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 225 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:21,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 2718 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-07-14 07:05:21,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 561. [2022-07-14 07:05:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 478 states have (on average 1.2573221757322175) internal successors, (601), 485 states have internal predecessors, (601), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2022-07-14 07:05:21,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 707 transitions. [2022-07-14 07:05:21,106 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 707 transitions. Word has length 56 [2022-07-14 07:05:21,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:21,107 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 707 transitions. [2022-07-14 07:05:21,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:21,107 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 707 transitions. [2022-07-14 07:05:21,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:21,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:21,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:21,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-14 07:05:21,108 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:21,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:21,109 INFO L85 PathProgramCache]: Analyzing trace with hash -353317419, now seen corresponding path program 1 times [2022-07-14 07:05:21,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:21,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916848854] [2022-07-14 07:05:21,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:21,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 07:05:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 07:05:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:21,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:21,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916848854] [2022-07-14 07:05:21,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916848854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:21,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:21,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:21,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362979503] [2022-07-14 07:05:21,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:21,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:21,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:21,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:21,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:21,168 INFO L87 Difference]: Start difference. First operand 561 states and 707 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:21,596 INFO L93 Difference]: Finished difference Result 572 states and 722 transitions. [2022-07-14 07:05:21,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:21,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2022-07-14 07:05:21,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:21,598 INFO L225 Difference]: With dead ends: 572 [2022-07-14 07:05:21,598 INFO L226 Difference]: Without dead ends: 561 [2022-07-14 07:05:21,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:21,598 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 170 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:21,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1804 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:21,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-07-14 07:05:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 549. [2022-07-14 07:05:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 467 states have (on average 1.2526766595289078) internal successors, (585), 474 states have internal predecessors, (585), 47 states have call successors, (47), 27 states have call predecessors, (47), 34 states have return successors, (57), 47 states have call predecessors, (57), 42 states have call successors, (57) [2022-07-14 07:05:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 689 transitions. [2022-07-14 07:05:21,605 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 689 transitions. Word has length 58 [2022-07-14 07:05:21,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:21,606 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 689 transitions. [2022-07-14 07:05:21,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:21,606 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 689 transitions. [2022-07-14 07:05:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-14 07:05:21,607 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:21,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:21,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-14 07:05:21,608 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:21,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash -470261491, now seen corresponding path program 1 times [2022-07-14 07:05:21,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:21,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464149668] [2022-07-14 07:05:21,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:21,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 07:05:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:21,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:21,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464149668] [2022-07-14 07:05:21,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464149668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:21,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:21,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:21,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221624728] [2022-07-14 07:05:21,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:21,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:21,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:21,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:21,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:21,804 INFO L87 Difference]: Start difference. First operand 549 states and 689 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:22,456 INFO L93 Difference]: Finished difference Result 574 states and 720 transitions. [2022-07-14 07:05:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:22,456 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-07-14 07:05:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:22,457 INFO L225 Difference]: With dead ends: 574 [2022-07-14 07:05:22,458 INFO L226 Difference]: Without dead ends: 556 [2022-07-14 07:05:22,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:05:22,458 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 207 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:22,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 3038 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:22,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-07-14 07:05:22,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 544. [2022-07-14 07:05:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 464 states have (on average 1.2521551724137931) internal successors, (581), 471 states have internal predecessors, (581), 45 states have call successors, (45), 27 states have call predecessors, (45), 34 states have return successors, (55), 45 states have call predecessors, (55), 40 states have call successors, (55) [2022-07-14 07:05:22,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 681 transitions. [2022-07-14 07:05:22,463 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 681 transitions. Word has length 64 [2022-07-14 07:05:22,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:22,464 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 681 transitions. [2022-07-14 07:05:22,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:22,464 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 681 transitions. [2022-07-14 07:05:22,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:05:22,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:22,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:22,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-14 07:05:22,465 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:22,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:22,466 INFO L85 PathProgramCache]: Analyzing trace with hash 908630671, now seen corresponding path program 1 times [2022-07-14 07:05:22,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:22,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600667656] [2022-07-14 07:05:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:22,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 07:05:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:22,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:22,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600667656] [2022-07-14 07:05:22,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600667656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:22,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:22,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:22,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407401356] [2022-07-14 07:05:22,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:22,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:22,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:22,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:22,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:22,574 INFO L87 Difference]: Start difference. First operand 544 states and 681 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:23,099 INFO L93 Difference]: Finished difference Result 555 states and 696 transitions. [2022-07-14 07:05:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:23,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-07-14 07:05:23,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:23,101 INFO L225 Difference]: With dead ends: 555 [2022-07-14 07:05:23,101 INFO L226 Difference]: Without dead ends: 514 [2022-07-14 07:05:23,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:23,101 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 115 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:23,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2879 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:23,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-07-14 07:05:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 502. [2022-07-14 07:05:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 427 states have (on average 1.2622950819672132) internal successors, (539), 433 states have internal predecessors, (539), 42 states have call successors, (42), 25 states have call predecessors, (42), 32 states have return successors, (53), 43 states have call predecessors, (53), 38 states have call successors, (53) [2022-07-14 07:05:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 634 transitions. [2022-07-14 07:05:23,108 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 634 transitions. Word has length 57 [2022-07-14 07:05:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:23,108 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 634 transitions. [2022-07-14 07:05:23,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 634 transitions. [2022-07-14 07:05:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:23,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:23,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:23,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-14 07:05:23,110 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:23,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:23,110 INFO L85 PathProgramCache]: Analyzing trace with hash -657100087, now seen corresponding path program 1 times [2022-07-14 07:05:23,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:23,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534140401] [2022-07-14 07:05:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:23,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:23,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:23,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534140401] [2022-07-14 07:05:23,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534140401] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:23,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:23,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:23,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419487456] [2022-07-14 07:05:23,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:23,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:23,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:23,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:23,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:23,231 INFO L87 Difference]: Start difference. First operand 502 states and 634 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:24,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:24,409 INFO L93 Difference]: Finished difference Result 956 states and 1210 transitions. [2022-07-14 07:05:24,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-14 07:05:24,409 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2022-07-14 07:05:24,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:24,411 INFO L225 Difference]: With dead ends: 956 [2022-07-14 07:05:24,411 INFO L226 Difference]: Without dead ends: 949 [2022-07-14 07:05:24,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=1287, Unknown=0, NotChecked=0, Total=1560 [2022-07-14 07:05:24,411 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 943 mSDsluCounter, 1871 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:24,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 2266 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-07-14 07:05:24,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 719. [2022-07-14 07:05:24,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 606 states have (on average 1.2656765676567656) internal successors, (767), 619 states have internal predecessors, (767), 61 states have call successors, (61), 40 states have call predecessors, (61), 51 states have return successors, (80), 59 states have call predecessors, (80), 57 states have call successors, (80) [2022-07-14 07:05:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 908 transitions. [2022-07-14 07:05:24,421 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 908 transitions. Word has length 58 [2022-07-14 07:05:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:24,421 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 908 transitions. [2022-07-14 07:05:24,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 7 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:24,422 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 908 transitions. [2022-07-14 07:05:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:24,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:24,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:24,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-14 07:05:24,423 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:24,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:24,424 INFO L85 PathProgramCache]: Analyzing trace with hash 218918919, now seen corresponding path program 1 times [2022-07-14 07:05:24,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:24,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674306540] [2022-07-14 07:05:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:24,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:24,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:24,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674306540] [2022-07-14 07:05:24,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674306540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:24,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:24,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:24,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588890203] [2022-07-14 07:05:24,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:24,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:24,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:24,467 INFO L87 Difference]: Start difference. First operand 719 states and 908 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:24,940 INFO L93 Difference]: Finished difference Result 946 states and 1198 transitions. [2022-07-14 07:05:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:24,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2022-07-14 07:05:24,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:24,943 INFO L225 Difference]: With dead ends: 946 [2022-07-14 07:05:24,943 INFO L226 Difference]: Without dead ends: 946 [2022-07-14 07:05:24,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-07-14 07:05:24,943 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 948 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:24,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1788 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:24,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2022-07-14 07:05:24,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 546. [2022-07-14 07:05:24,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 466 states have (on average 1.2467811158798283) internal successors, (581), 472 states have internal predecessors, (581), 44 states have call successors, (44), 29 states have call predecessors, (44), 35 states have return successors, (55), 44 states have call predecessors, (55), 40 states have call successors, (55) [2022-07-14 07:05:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 680 transitions. [2022-07-14 07:05:24,953 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 680 transitions. Word has length 58 [2022-07-14 07:05:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:24,953 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 680 transitions. [2022-07-14 07:05:24,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 680 transitions. [2022-07-14 07:05:24,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-14 07:05:24,954 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:24,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:24,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-14 07:05:24,955 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:24,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:24,955 INFO L85 PathProgramCache]: Analyzing trace with hash -924829849, now seen corresponding path program 1 times [2022-07-14 07:05:24,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:24,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795946804] [2022-07-14 07:05:24,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:24,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 07:05:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:25,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:25,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795946804] [2022-07-14 07:05:25,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795946804] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:25,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:25,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:25,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706906719] [2022-07-14 07:05:25,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:25,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:25,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:25,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:25,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:25,083 INFO L87 Difference]: Start difference. First operand 546 states and 680 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-14 07:05:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:25,658 INFO L93 Difference]: Finished difference Result 578 states and 720 transitions. [2022-07-14 07:05:25,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:25,658 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2022-07-14 07:05:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:25,660 INFO L225 Difference]: With dead ends: 578 [2022-07-14 07:05:25,660 INFO L226 Difference]: Without dead ends: 549 [2022-07-14 07:05:25,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:25,660 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 311 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:25,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 2338 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:25,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-14 07:05:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 537. [2022-07-14 07:05:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 459 states have (on average 1.2440087145969498) internal successors, (571), 465 states have internal predecessors, (571), 42 states have call successors, (42), 29 states have call predecessors, (42), 35 states have return successors, (52), 42 states have call predecessors, (52), 38 states have call successors, (52) [2022-07-14 07:05:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 665 transitions. [2022-07-14 07:05:25,668 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 665 transitions. Word has length 60 [2022-07-14 07:05:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:25,668 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 665 transitions. [2022-07-14 07:05:25,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-14 07:05:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 665 transitions. [2022-07-14 07:05:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:25,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:25,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:25,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-14 07:05:25,670 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:25,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1589833595, now seen corresponding path program 1 times [2022-07-14 07:05:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:25,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983406912] [2022-07-14 07:05:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 07:05:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:25,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:25,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983406912] [2022-07-14 07:05:25,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983406912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:25,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:25,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:25,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471947696] [2022-07-14 07:05:25,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:25,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:25,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:25,723 INFO L87 Difference]: Start difference. First operand 537 states and 665 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:25,910 INFO L93 Difference]: Finished difference Result 547 states and 677 transitions. [2022-07-14 07:05:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2022-07-14 07:05:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:25,911 INFO L225 Difference]: With dead ends: 547 [2022-07-14 07:05:25,912 INFO L226 Difference]: Without dead ends: 539 [2022-07-14 07:05:25,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:25,912 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 156 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:25,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1276 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-07-14 07:05:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 527. [2022-07-14 07:05:25,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 450 states have (on average 1.2444444444444445) internal successors, (560), 456 states have internal predecessors, (560), 41 states have call successors, (41), 29 states have call predecessors, (41), 35 states have return successors, (50), 41 states have call predecessors, (50), 37 states have call successors, (50) [2022-07-14 07:05:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 651 transitions. [2022-07-14 07:05:25,918 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 651 transitions. Word has length 58 [2022-07-14 07:05:25,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:25,919 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 651 transitions. [2022-07-14 07:05:25,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 651 transitions. [2022-07-14 07:05:25,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:25,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:25,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:25,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-14 07:05:25,920 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2090035410, now seen corresponding path program 1 times [2022-07-14 07:05:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:25,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307042648] [2022-07-14 07:05:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:25,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:05:25,937 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 07:05:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:05:25,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 07:05:25,984 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 07:05:25,985 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-14 07:05:25,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-14 07:05:25,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-14 07:05:25,992 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:25,995 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 07:05:26,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 07:05:26 BoogieIcfgContainer [2022-07-14 07:05:26,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 07:05:26,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 07:05:26,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 07:05:26,078 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 07:05:26,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:04:55" (3/4) ... [2022-07-14 07:05:26,080 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 07:05:26,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 07:05:26,081 INFO L158 Benchmark]: Toolchain (without parser) took 31937.49ms. Allocated memory was 86.0MB in the beginning and 218.1MB in the end (delta: 132.1MB). Free memory was 64.2MB in the beginning and 104.8MB in the end (delta: -40.5MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2022-07-14 07:05:26,081 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory was 64.1MB in the beginning and 64.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:05:26,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.73ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 64.1MB in the end (delta: -93.7kB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-07-14 07:05:26,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.99ms. Allocated memory is still 107.0MB. Free memory was 64.1MB in the beginning and 57.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 07:05:26,081 INFO L158 Benchmark]: Boogie Preprocessor took 48.81ms. Allocated memory is still 107.0MB. Free memory was 57.0MB in the beginning and 52.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 07:05:26,082 INFO L158 Benchmark]: RCFGBuilder took 990.27ms. Allocated memory is still 107.0MB. Free memory was 52.2MB in the beginning and 49.1MB in the end (delta: 3.1MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-07-14 07:05:26,082 INFO L158 Benchmark]: TraceAbstraction took 30310.07ms. Allocated memory was 107.0MB in the beginning and 218.1MB in the end (delta: 111.1MB). Free memory was 48.7MB in the beginning and 104.8MB in the end (delta: -56.1MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2022-07-14 07:05:26,082 INFO L158 Benchmark]: Witness Printer took 2.84ms. Allocated memory is still 218.1MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:05:26,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory was 64.1MB in the beginning and 64.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.73ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 64.1MB in the end (delta: -93.7kB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.99ms. Allocated memory is still 107.0MB. Free memory was 64.1MB in the beginning and 57.0MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.81ms. Allocated memory is still 107.0MB. Free memory was 57.0MB in the beginning and 52.5MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 990.27ms. Allocated memory is still 107.0MB. Free memory was 52.2MB in the beginning and 49.1MB in the end (delta: 3.1MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 30310.07ms. Allocated memory was 107.0MB in the beginning and 218.1MB in the end (delta: 111.1MB). Free memory was 48.7MB in the beginning and 104.8MB in the end (delta: -56.1MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. * Witness Printer took 2.84ms. Allocated memory is still 218.1MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp [L1755] CALL _BLAST_init() [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0, we_should_unload=0] [L1772] CALL stub_driver_init() [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(DeviceObject)=0, \old(Irp)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(Context)=-1, \old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=-1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__AssociatedIrp__SystemBuffer=0, Irp__PendingReturned=1, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(DeviceObject)=0, \old(Irp)=0, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=-1073741637, customIrp=0, DC=2, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, Irp__PendingReturned=0, KernelMode=0, lcontext=-1, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=0, \old(Irp)=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=0, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(DeviceObject)=0, \old(Irp)=0, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=0, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [compFptr=0, compRegistered=1, customIrp=0, d=0, DC=2, DeviceUsageTypePaging=1, devobj=0, Executive=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=1, pirp=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 30.2s, OverallIterations: 65, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 24.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20900 SdHoareTripleChecker+Valid, 20.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20457 mSDsluCounter, 157030 SdHoareTripleChecker+Invalid, 16.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121937 mSDsCounter, 5423 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40369 IncrementalHoareTripleChecker+Invalid, 45792 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5423 mSolverCounterUnsat, 35093 mSDtfsCounter, 40369 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 885 GetRequests, 269 SyntacticMatches, 6 SemanticMatches, 610 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1073occurred in iteration=10, InterpolantAutomatonStates: 563, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 64 MinimizatonAttempts, 2845 StatesRemovedByMinimization, 59 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2863 NumberOfCodeBlocks, 2863 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 2741 ConstructedInterpolants, 0 QuantifiedInterpolants, 7831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 64 InterpolantComputations, 64 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-14 07:05:26,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 07:05:28,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 07:05:28,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 07:05:28,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 07:05:28,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 07:05:28,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 07:05:28,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 07:05:28,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 07:05:28,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 07:05:28,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 07:05:28,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 07:05:28,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 07:05:28,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 07:05:28,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 07:05:28,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 07:05:28,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 07:05:28,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 07:05:28,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 07:05:28,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 07:05:28,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 07:05:28,156 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 07:05:28,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 07:05:28,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 07:05:28,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 07:05:28,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 07:05:28,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 07:05:28,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 07:05:28,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 07:05:28,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 07:05:28,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 07:05:28,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 07:05:28,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 07:05:28,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 07:05:28,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 07:05:28,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 07:05:28,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 07:05:28,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 07:05:28,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 07:05:28,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 07:05:28,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 07:05:28,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 07:05:28,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 07:05:28,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-14 07:05:28,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 07:05:28,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 07:05:28,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 07:05:28,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 07:05:28,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 07:05:28,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 07:05:28,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 07:05:28,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 07:05:28,229 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 07:05:28,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 07:05:28,229 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 07:05:28,230 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 07:05:28,231 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 07:05:28,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 07:05:28,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 07:05:28,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 07:05:28,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 07:05:28,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:05:28,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 07:05:28,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 07:05:28,232 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 07:05:28,232 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 07:05:28,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 07:05:28,232 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2022-07-14 07:05:28,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 07:05:28,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 07:05:28,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 07:05:28,533 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 07:05:28,534 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 07:05:28,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-07-14 07:05:28,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699a0e2b1/f3c33c7edead4e07ba2e0dfbe0ceb8ae/FLAG49eea83a0 [2022-07-14 07:05:29,072 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 07:05:29,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2022-07-14 07:05:29,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699a0e2b1/f3c33c7edead4e07ba2e0dfbe0ceb8ae/FLAG49eea83a0 [2022-07-14 07:05:29,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/699a0e2b1/f3c33c7edead4e07ba2e0dfbe0ceb8ae [2022-07-14 07:05:29,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 07:05:29,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 07:05:29,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 07:05:29,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 07:05:29,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 07:05:29,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:05:29" (1/1) ... [2022-07-14 07:05:29,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d9ca76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:29, skipping insertion in model container [2022-07-14 07:05:29,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:05:29" (1/1) ... [2022-07-14 07:05:29,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 07:05:29,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 07:05:29,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-07-14 07:05:29,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:05:29,954 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 07:05:29,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2022-07-14 07:05:30,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:05:30,067 INFO L208 MainTranslator]: Completed translation [2022-07-14 07:05:30,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30 WrapperNode [2022-07-14 07:05:30,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 07:05:30,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 07:05:30,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 07:05:30,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 07:05:30,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,157 INFO L137 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1444 [2022-07-14 07:05:30,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 07:05:30,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 07:05:30,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 07:05:30,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 07:05:30,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 07:05:30,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 07:05:30,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 07:05:30,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 07:05:30,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (1/1) ... [2022-07-14 07:05:30,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:05:30,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:05:30,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 07:05:30,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 07:05:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-07-14 07:05:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-07-14 07:05:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 07:05:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-07-14 07:05:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-07-14 07:05:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 07:05:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-07-14 07:05:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-07-14 07:05:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-07-14 07:05:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-07-14 07:05:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-14 07:05:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-14 07:05:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-14 07:05:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-14 07:05:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-07-14 07:05:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-07-14 07:05:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-07-14 07:05:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-07-14 07:05:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-07-14 07:05:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-07-14 07:05:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-14 07:05:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-14 07:05:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-14 07:05:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-14 07:05:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-07-14 07:05:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-07-14 07:05:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 07:05:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 07:05:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-07-14 07:05:30,325 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-07-14 07:05:30,570 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 07:05:30,572 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 07:05:30,635 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,660 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-07-14 07:05:30,661 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-07-14 07:05:30,698 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,709 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-14 07:05:30,709 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-14 07:05:30,713 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,714 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,716 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,722 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,730 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,732 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:30,740 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:31,247 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0bv32; [2022-07-14 07:05:31,247 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2022-07-14 07:05:31,248 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2022-07-14 07:05:31,248 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2022-07-14 07:05:31,248 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2022-07-14 07:05:31,248 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-07-14 07:05:31,248 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-07-14 07:05:31,248 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2022-07-14 07:05:31,248 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2022-07-14 07:05:31,249 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2022-07-14 07:05:31,249 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2022-07-14 07:05:31,249 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-14 07:05:31,249 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-14 07:05:31,249 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-07-14 07:05:31,249 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-07-14 07:05:31,297 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 07:05:31,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 07:05:31,311 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 07:05:31,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:31 BoogieIcfgContainer [2022-07-14 07:05:31,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 07:05:31,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 07:05:31,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 07:05:31,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 07:05:31,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 07:05:29" (1/3) ... [2022-07-14 07:05:31,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384854ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:05:31, skipping insertion in model container [2022-07-14 07:05:31,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:05:30" (2/3) ... [2022-07-14 07:05:31,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384854ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:05:31, skipping insertion in model container [2022-07-14 07:05:31,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:31" (3/3) ... [2022-07-14 07:05:31,321 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2022-07-14 07:05:31,331 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 07:05:31,332 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 07:05:31,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 07:05:31,386 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29276f21, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6eb4be21 [2022-07-14 07:05:31,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 07:05:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2022-07-14 07:05:31,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 07:05:31,421 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:31,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:31,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:31,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2022-07-14 07:05:31,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:31,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351470051] [2022-07-14 07:05:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:31,444 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:31,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:31,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:31,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 07:05:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:31,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:31,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:31,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:31,632 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:31,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351470051] [2022-07-14 07:05:31,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351470051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:31,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:31,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:31,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072008032] [2022-07-14 07:05:31,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:31,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:31,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:31,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:31,665 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:31,776 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2022-07-14 07:05:31,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:31,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 07:05:31,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:31,795 INFO L225 Difference]: With dead ends: 623 [2022-07-14 07:05:31,797 INFO L226 Difference]: Without dead ends: 619 [2022-07-14 07:05:31,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:31,805 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:31,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:31,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-14 07:05:31,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2022-07-14 07:05:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2022-07-14 07:05:31,900 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2022-07-14 07:05:31,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:31,901 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2022-07-14 07:05:31,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:31,901 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2022-07-14 07:05:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 07:05:31,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:31,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:31,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:32,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:32,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:32,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2022-07-14 07:05:32,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:32,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706566800] [2022-07-14 07:05:32,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:32,112 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:32,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:32,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:32,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 07:05:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:32,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:32,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:32,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:32,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706566800] [2022-07-14 07:05:32,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706566800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:32,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:32,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:32,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932704169] [2022-07-14 07:05:32,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:32,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:32,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:32,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:32,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:32,248 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:32,281 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2022-07-14 07:05:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:32,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 07:05:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:32,285 INFO L225 Difference]: With dead ends: 606 [2022-07-14 07:05:32,285 INFO L226 Difference]: Without dead ends: 606 [2022-07-14 07:05:32,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:32,287 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:32,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-07-14 07:05:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2022-07-14 07:05:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:32,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2022-07-14 07:05:32,316 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2022-07-14 07:05:32,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:32,316 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2022-07-14 07:05:32,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2022-07-14 07:05:32,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 07:05:32,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:32,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:32,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:32,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:32,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:32,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2022-07-14 07:05:32,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:32,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470657916] [2022-07-14 07:05:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:32,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:32,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:32,528 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:32,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 07:05:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:32,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:32,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:32,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:32,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470657916] [2022-07-14 07:05:32,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470657916] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:32,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:32,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:05:32,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180005600] [2022-07-14 07:05:32,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:32,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:32,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:32,683 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:32,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:32,797 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2022-07-14 07:05:32,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:32,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 07:05:32,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:32,803 INFO L225 Difference]: With dead ends: 602 [2022-07-14 07:05:32,803 INFO L226 Difference]: Without dead ends: 599 [2022-07-14 07:05:32,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:32,805 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:32,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:32,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-07-14 07:05:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-07-14 07:05:32,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2022-07-14 07:05:32,830 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2022-07-14 07:05:32,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:32,830 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2022-07-14 07:05:32,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2022-07-14 07:05:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 07:05:32,831 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:32,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:32,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:33,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:33,040 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:33,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:33,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2022-07-14 07:05:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:33,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794024887] [2022-07-14 07:05:33,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:33,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:33,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:33,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:33,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 07:05:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:33,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:33,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:33,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:33,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794024887] [2022-07-14 07:05:33,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794024887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:33,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:33,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:33,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138416107] [2022-07-14 07:05:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:33,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:33,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:33,153 INFO L87 Difference]: Start difference. First operand 599 states and 890 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:33,214 INFO L93 Difference]: Finished difference Result 602 states and 892 transitions. [2022-07-14 07:05:33,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:33,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-14 07:05:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:33,216 INFO L225 Difference]: With dead ends: 602 [2022-07-14 07:05:33,217 INFO L226 Difference]: Without dead ends: 599 [2022-07-14 07:05:33,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:33,217 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:33,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1335 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-07-14 07:05:33,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-07-14 07:05:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.4513457556935818) internal successors, (701), 490 states have internal predecessors, (701), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 889 transitions. [2022-07-14 07:05:33,232 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 889 transitions. Word has length 13 [2022-07-14 07:05:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:33,233 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 889 transitions. [2022-07-14 07:05:33,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:33,233 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 889 transitions. [2022-07-14 07:05:33,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 07:05:33,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:33,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:33,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:33,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:33,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:33,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839809, now seen corresponding path program 1 times [2022-07-14 07:05:33,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:33,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594476259] [2022-07-14 07:05:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:33,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:33,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:33,443 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:33,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 07:05:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:33,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:33,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:33,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:33,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594476259] [2022-07-14 07:05:33,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594476259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:33,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:33,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:33,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904650091] [2022-07-14 07:05:33,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:33,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:33,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:33,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:33,562 INFO L87 Difference]: Start difference. First operand 599 states and 889 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:33,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:33,737 INFO L93 Difference]: Finished difference Result 851 states and 1244 transitions. [2022-07-14 07:05:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:33,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-14 07:05:33,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:33,742 INFO L225 Difference]: With dead ends: 851 [2022-07-14 07:05:33,742 INFO L226 Difference]: Without dead ends: 850 [2022-07-14 07:05:33,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:33,743 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 567 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:33,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1051 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:33,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2022-07-14 07:05:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 799. [2022-07-14 07:05:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 656 states have (on average 1.4222560975609757) internal successors, (933), 649 states have internal predecessors, (933), 107 states have call successors, (107), 31 states have call predecessors, (107), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2022-07-14 07:05:33,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1176 transitions. [2022-07-14 07:05:33,757 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1176 transitions. Word has length 15 [2022-07-14 07:05:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:33,758 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1176 transitions. [2022-07-14 07:05:33,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1176 transitions. [2022-07-14 07:05:33,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 07:05:33,759 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:33,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:33,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:33,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:33,963 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:33,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:33,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1930286977, now seen corresponding path program 1 times [2022-07-14 07:05:33,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:33,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595069730] [2022-07-14 07:05:33,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:33,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:33,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:33,965 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:33,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 07:05:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 07:05:34,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:34,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:34,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:34,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595069730] [2022-07-14 07:05:34,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595069730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:34,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:34,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:34,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828299492] [2022-07-14 07:05:34,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:34,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:34,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:34,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:34,127 INFO L87 Difference]: Start difference. First operand 799 states and 1176 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:34,147 INFO L93 Difference]: Finished difference Result 875 states and 1272 transitions. [2022-07-14 07:05:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:34,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-14 07:05:34,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:34,152 INFO L225 Difference]: With dead ends: 875 [2022-07-14 07:05:34,153 INFO L226 Difference]: Without dead ends: 875 [2022-07-14 07:05:34,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:34,156 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 601 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:34,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 870 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2022-07-14 07:05:34,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 847. [2022-07-14 07:05:34,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 699 states have (on average 1.4406294706723892) internal successors, (1007), 703 states have internal predecessors, (1007), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-07-14 07:05:34,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1240 transitions. [2022-07-14 07:05:34,182 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1240 transitions. Word has length 19 [2022-07-14 07:05:34,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:34,182 INFO L495 AbstractCegarLoop]: Abstraction has 847 states and 1240 transitions. [2022-07-14 07:05:34,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1240 transitions. [2022-07-14 07:05:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:05:34,184 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:34,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:34,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:34,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:34,393 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:34,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:34,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1396316142, now seen corresponding path program 1 times [2022-07-14 07:05:34,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:34,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268124474] [2022-07-14 07:05:34,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:34,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:34,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:34,395 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:34,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 07:05:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:05:34,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:34,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:34,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:34,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:34,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268124474] [2022-07-14 07:05:34,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268124474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:34,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:34,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:34,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443699624] [2022-07-14 07:05:34,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:34,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:34,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:34,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:34,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:34,597 INFO L87 Difference]: Start difference. First operand 847 states and 1240 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:34,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:34,960 INFO L93 Difference]: Finished difference Result 894 states and 1294 transitions. [2022-07-14 07:05:34,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:34,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 07:05:34,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:34,964 INFO L225 Difference]: With dead ends: 894 [2022-07-14 07:05:34,964 INFO L226 Difference]: Without dead ends: 894 [2022-07-14 07:05:34,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:34,964 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1032 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:34,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 871 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:34,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-07-14 07:05:34,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 844. [2022-07-14 07:05:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 696 states have (on average 1.4295977011494252) internal successors, (995), 700 states have internal predecessors, (995), 106 states have call successors, (106), 35 states have call predecessors, (106), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-07-14 07:05:34,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1228 transitions. [2022-07-14 07:05:34,980 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1228 transitions. Word has length 21 [2022-07-14 07:05:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:34,980 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1228 transitions. [2022-07-14 07:05:34,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1228 transitions. [2022-07-14 07:05:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 07:05:34,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:34,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:34,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:35,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:35,188 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:35,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:35,188 INFO L85 PathProgramCache]: Analyzing trace with hash -401986427, now seen corresponding path program 1 times [2022-07-14 07:05:35,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:35,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900473370] [2022-07-14 07:05:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:35,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:35,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:35,190 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:35,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 07:05:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:35,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:35,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:35,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:35,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:35,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900473370] [2022-07-14 07:05:35,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900473370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:35,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:35,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:35,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869789523] [2022-07-14 07:05:35,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:35,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:35,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:35,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:35,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:35,296 INFO L87 Difference]: Start difference. First operand 844 states and 1228 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:35,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:35,354 INFO L93 Difference]: Finished difference Result 843 states and 1225 transitions. [2022-07-14 07:05:35,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:35,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-07-14 07:05:35,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:35,357 INFO L225 Difference]: With dead ends: 843 [2022-07-14 07:05:35,357 INFO L226 Difference]: Without dead ends: 843 [2022-07-14 07:05:35,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:35,358 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 22 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:35,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1254 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:35,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-07-14 07:05:35,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2022-07-14 07:05:35,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 696 states have (on average 1.4267241379310345) internal successors, (993), 699 states have internal predecessors, (993), 105 states have call successors, (105), 35 states have call predecessors, (105), 41 states have return successors, (127), 108 states have call predecessors, (127), 98 states have call successors, (127) [2022-07-14 07:05:35,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1225 transitions. [2022-07-14 07:05:35,373 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1225 transitions. Word has length 23 [2022-07-14 07:05:35,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:35,373 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1225 transitions. [2022-07-14 07:05:35,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:35,374 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1225 transitions. [2022-07-14 07:05:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:35,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:35,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:35,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:35,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:35,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:35,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:35,577 INFO L85 PathProgramCache]: Analyzing trace with hash -607443031, now seen corresponding path program 1 times [2022-07-14 07:05:35,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:35,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509055568] [2022-07-14 07:05:35,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:35,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:35,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:35,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:35,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 07:05:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:35,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:35,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:35,725 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:35,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:35,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509055568] [2022-07-14 07:05:35,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509055568] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:35,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:35,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:35,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495229166] [2022-07-14 07:05:35,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:35,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:35,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:35,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:35,726 INFO L87 Difference]: Start difference. First operand 843 states and 1225 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:35,753 INFO L93 Difference]: Finished difference Result 761 states and 1092 transitions. [2022-07-14 07:05:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:35,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-14 07:05:35,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:35,757 INFO L225 Difference]: With dead ends: 761 [2022-07-14 07:05:35,757 INFO L226 Difference]: Without dead ends: 761 [2022-07-14 07:05:35,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:35,759 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 186 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:35,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1263 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:35,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-14 07:05:35,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 736. [2022-07-14 07:05:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 606 states have (on average 1.4207920792079207) internal successors, (861), 609 states have internal predecessors, (861), 95 states have call successors, (95), 30 states have call predecessors, (95), 34 states have return successors, (107), 96 states have call predecessors, (107), 88 states have call successors, (107) [2022-07-14 07:05:35,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1063 transitions. [2022-07-14 07:05:35,772 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1063 transitions. Word has length 35 [2022-07-14 07:05:35,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:35,772 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 1063 transitions. [2022-07-14 07:05:35,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1063 transitions. [2022-07-14 07:05:35,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:35,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:35,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:35,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:35,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:35,982 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:35,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:35,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1380818810, now seen corresponding path program 1 times [2022-07-14 07:05:35,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:35,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127740771] [2022-07-14 07:05:35,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:35,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:35,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:35,986 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:35,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 07:05:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:36,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:36,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:36,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127740771] [2022-07-14 07:05:36,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127740771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:36,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:36,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:36,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162043769] [2022-07-14 07:05:36,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:36,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:36,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:36,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:36,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:36,108 INFO L87 Difference]: Start difference. First operand 736 states and 1063 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:36,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:36,128 INFO L93 Difference]: Finished difference Result 667 states and 953 transitions. [2022-07-14 07:05:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:36,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-07-14 07:05:36,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:36,130 INFO L225 Difference]: With dead ends: 667 [2022-07-14 07:05:36,130 INFO L226 Difference]: Without dead ends: 667 [2022-07-14 07:05:36,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:36,131 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 159 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:36,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1313 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-07-14 07:05:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 640. [2022-07-14 07:05:36,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 528 states have (on average 1.4204545454545454) internal successors, (750), 534 states have internal predecessors, (750), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (88), 81 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 922 transitions. [2022-07-14 07:05:36,156 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 922 transitions. Word has length 35 [2022-07-14 07:05:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:36,156 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 922 transitions. [2022-07-14 07:05:36,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 922 transitions. [2022-07-14 07:05:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-14 07:05:36,158 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:36,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:36,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:36,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:36,369 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:36,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:36,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894010, now seen corresponding path program 1 times [2022-07-14 07:05:36,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:36,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254202491] [2022-07-14 07:05:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:36,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:36,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:36,371 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:36,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 07:05:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:36,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:36,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:36,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:36,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254202491] [2022-07-14 07:05:36,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254202491] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:36,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:36,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:36,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738410566] [2022-07-14 07:05:36,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:36,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:36,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:36,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:36,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:36,548 INFO L87 Difference]: Start difference. First operand 640 states and 922 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:36,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:36,800 INFO L93 Difference]: Finished difference Result 640 states and 920 transitions. [2022-07-14 07:05:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:36,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-07-14 07:05:36,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:36,803 INFO L225 Difference]: With dead ends: 640 [2022-07-14 07:05:36,803 INFO L226 Difference]: Without dead ends: 640 [2022-07-14 07:05:36,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:36,803 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 681 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:36,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1096 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-07-14 07:05:36,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2022-07-14 07:05:36,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 528 states have (on average 1.4166666666666667) internal successors, (748), 534 states have internal predecessors, (748), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (88), 81 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 920 transitions. [2022-07-14 07:05:36,820 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 920 transitions. Word has length 32 [2022-07-14 07:05:36,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:36,820 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 920 transitions. [2022-07-14 07:05:36,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 920 transitions. [2022-07-14 07:05:36,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:05:36,822 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:36,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:36,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:37,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:37,029 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:37,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:37,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1030908419, now seen corresponding path program 1 times [2022-07-14 07:05:37,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:37,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933249217] [2022-07-14 07:05:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:37,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:37,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:37,031 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:37,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 07:05:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:37,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:37,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:37,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:37,135 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:37,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933249217] [2022-07-14 07:05:37,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933249217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:37,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:37,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:37,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017492812] [2022-07-14 07:05:37,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:37,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:37,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:37,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:37,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:37,137 INFO L87 Difference]: Start difference. First operand 640 states and 920 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:37,150 INFO L93 Difference]: Finished difference Result 659 states and 939 transitions. [2022-07-14 07:05:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:37,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-07-14 07:05:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:37,153 INFO L225 Difference]: With dead ends: 659 [2022-07-14 07:05:37,153 INFO L226 Difference]: Without dead ends: 659 [2022-07-14 07:05:37,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:37,154 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 569 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:37,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:37,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-07-14 07:05:37,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 639. [2022-07-14 07:05:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 527 states have (on average 1.413662239089184) internal successors, (745), 533 states have internal predecessors, (745), 84 states have call successors, (84), 24 states have call predecessors, (84), 27 states have return successors, (86), 81 states have call predecessors, (86), 77 states have call successors, (86) [2022-07-14 07:05:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 915 transitions. [2022-07-14 07:05:37,163 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 915 transitions. Word has length 36 [2022-07-14 07:05:37,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:37,163 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 915 transitions. [2022-07-14 07:05:37,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:37,164 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 915 transitions. [2022-07-14 07:05:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:05:37,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:37,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:37,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:37,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:37,372 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:37,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash 138802049, now seen corresponding path program 1 times [2022-07-14 07:05:37,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:37,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128005245] [2022-07-14 07:05:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:37,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:37,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:37,373 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:37,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 07:05:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:37,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:37,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:37,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:37,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:37,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128005245] [2022-07-14 07:05:37,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128005245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:37,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:37,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:37,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847408722] [2022-07-14 07:05:37,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:37,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:37,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:37,494 INFO L87 Difference]: Start difference. First operand 639 states and 915 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:37,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:37,561 INFO L93 Difference]: Finished difference Result 767 states and 1086 transitions. [2022-07-14 07:05:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:37,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-14 07:05:37,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:37,564 INFO L225 Difference]: With dead ends: 767 [2022-07-14 07:05:37,564 INFO L226 Difference]: Without dead ends: 767 [2022-07-14 07:05:37,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:37,564 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 135 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:37,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1388 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:37,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-07-14 07:05:37,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 690. [2022-07-14 07:05:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 574 states have (on average 1.386759581881533) internal successors, (796), 573 states have internal predecessors, (796), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (97), 92 states have call predecessors, (97), 77 states have call successors, (97) [2022-07-14 07:05:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 977 transitions. [2022-07-14 07:05:37,576 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 977 transitions. Word has length 34 [2022-07-14 07:05:37,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:37,576 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 977 transitions. [2022-07-14 07:05:37,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:37,577 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 977 transitions. [2022-07-14 07:05:37,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:05:37,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:37,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:37,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:37,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:37,785 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:37,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:37,785 INFO L85 PathProgramCache]: Analyzing trace with hash -298326081, now seen corresponding path program 1 times [2022-07-14 07:05:37,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:37,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680843333] [2022-07-14 07:05:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:37,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:37,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:37,786 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:37,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 07:05:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:37,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:37,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:37,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:37,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680843333] [2022-07-14 07:05:37,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680843333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:37,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:37,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:37,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377927709] [2022-07-14 07:05:37,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:37,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:37,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:37,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:37,945 INFO L87 Difference]: Start difference. First operand 690 states and 977 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:38,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:38,189 INFO L93 Difference]: Finished difference Result 671 states and 947 transitions. [2022-07-14 07:05:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:38,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-07-14 07:05:38,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:38,192 INFO L225 Difference]: With dead ends: 671 [2022-07-14 07:05:38,192 INFO L226 Difference]: Without dead ends: 671 [2022-07-14 07:05:38,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:38,193 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 673 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:38,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1104 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-07-14 07:05:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2022-07-14 07:05:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 557 states have (on average 1.3913824057450628) internal successors, (775), 563 states have internal predecessors, (775), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 947 transitions. [2022-07-14 07:05:38,208 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 947 transitions. Word has length 34 [2022-07-14 07:05:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:38,208 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 947 transitions. [2022-07-14 07:05:38,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:38,208 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 947 transitions. [2022-07-14 07:05:38,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:38,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:38,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:38,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:38,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:38,417 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:38,417 INFO L85 PathProgramCache]: Analyzing trace with hash 452395651, now seen corresponding path program 1 times [2022-07-14 07:05:38,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:38,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653908618] [2022-07-14 07:05:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:38,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:38,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:38,418 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:38,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 07:05:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:38,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:38,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:38,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:38,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:38,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653908618] [2022-07-14 07:05:38,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653908618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:38,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:38,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:38,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934088480] [2022-07-14 07:05:38,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:38,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:38,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:38,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:38,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:38,584 INFO L87 Difference]: Start difference. First operand 671 states and 947 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:38,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:38,872 INFO L93 Difference]: Finished difference Result 746 states and 1053 transitions. [2022-07-14 07:05:38,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:38,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-14 07:05:38,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:38,876 INFO L225 Difference]: With dead ends: 746 [2022-07-14 07:05:38,876 INFO L226 Difference]: Without dead ends: 746 [2022-07-14 07:05:38,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:38,876 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 745 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:38,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 1199 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:38,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-07-14 07:05:38,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 674. [2022-07-14 07:05:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 560 states have (on average 1.3910714285714285) internal successors, (779), 566 states have internal predecessors, (779), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:38,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 951 transitions. [2022-07-14 07:05:38,891 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 951 transitions. Word has length 35 [2022-07-14 07:05:38,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:38,891 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 951 transitions. [2022-07-14 07:05:38,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:38,891 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 951 transitions. [2022-07-14 07:05:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:38,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:38,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:38,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:39,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:39,108 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:39,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:39,109 INFO L85 PathProgramCache]: Analyzing trace with hash 452672481, now seen corresponding path program 1 times [2022-07-14 07:05:39,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:39,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417400218] [2022-07-14 07:05:39,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:39,109 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:39,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:39,110 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:39,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 07:05:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 07:05:39,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:39,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:39,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:39,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417400218] [2022-07-14 07:05:39,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417400218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:39,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:39,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:39,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390305509] [2022-07-14 07:05:39,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:39,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:39,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:39,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:39,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:39,248 INFO L87 Difference]: Start difference. First operand 674 states and 951 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:39,369 INFO L93 Difference]: Finished difference Result 690 states and 967 transitions. [2022-07-14 07:05:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:39,369 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-07-14 07:05:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:39,372 INFO L225 Difference]: With dead ends: 690 [2022-07-14 07:05:39,372 INFO L226 Difference]: Without dead ends: 673 [2022-07-14 07:05:39,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:39,373 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 52 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:39,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3220 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:39,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-07-14 07:05:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2022-07-14 07:05:39,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 559 states have (on average 1.3899821109123434) internal successors, (777), 565 states have internal predecessors, (777), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 949 transitions. [2022-07-14 07:05:39,386 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 949 transitions. Word has length 35 [2022-07-14 07:05:39,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:39,386 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 949 transitions. [2022-07-14 07:05:39,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 949 transitions. [2022-07-14 07:05:39,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 07:05:39,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:39,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:39,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:39,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:39,588 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2080196380, now seen corresponding path program 1 times [2022-07-14 07:05:39,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:39,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799526784] [2022-07-14 07:05:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:39,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:39,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:39,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:39,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 07:05:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:39,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:39,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:39,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:39,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799526784] [2022-07-14 07:05:39,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799526784] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:39,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:39,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:39,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699498283] [2022-07-14 07:05:39,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:39,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:39,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:39,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:39,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:39,702 INFO L87 Difference]: Start difference. First operand 673 states and 949 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:39,764 INFO L93 Difference]: Finished difference Result 699 states and 981 transitions. [2022-07-14 07:05:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:39,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-07-14 07:05:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:39,766 INFO L225 Difference]: With dead ends: 699 [2022-07-14 07:05:39,766 INFO L226 Difference]: Without dead ends: 699 [2022-07-14 07:05:39,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:39,767 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 49 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:39,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1897 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:39,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-14 07:05:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 675. [2022-07-14 07:05:39,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 561 states have (on average 1.3885918003565063) internal successors, (779), 567 states have internal predecessors, (779), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 951 transitions. [2022-07-14 07:05:39,792 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 951 transitions. Word has length 37 [2022-07-14 07:05:39,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:39,792 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 951 transitions. [2022-07-14 07:05:39,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:39,792 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 951 transitions. [2022-07-14 07:05:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 07:05:39,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:39,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:39,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:40,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:40,001 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:40,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:40,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1792069090, now seen corresponding path program 1 times [2022-07-14 07:05:40,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:40,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788852635] [2022-07-14 07:05:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:40,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:40,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:40,003 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:40,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 07:05:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:40,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:40,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:40,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:40,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:40,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:40,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788852635] [2022-07-14 07:05:40,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788852635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:40,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:40,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:40,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856835605] [2022-07-14 07:05:40,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:40,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:40,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:40,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:40,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:40,123 INFO L87 Difference]: Start difference. First operand 675 states and 951 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:40,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:40,173 INFO L93 Difference]: Finished difference Result 695 states and 973 transitions. [2022-07-14 07:05:40,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:40,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-07-14 07:05:40,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:40,175 INFO L225 Difference]: With dead ends: 695 [2022-07-14 07:05:40,175 INFO L226 Difference]: Without dead ends: 693 [2022-07-14 07:05:40,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:40,176 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 63 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:40,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1222 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:40,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-07-14 07:05:40,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 689. [2022-07-14 07:05:40,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 575 states have (on average 1.3843478260869566) internal successors, (796), 581 states have internal predecessors, (796), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 968 transitions. [2022-07-14 07:05:40,187 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 968 transitions. Word has length 37 [2022-07-14 07:05:40,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:40,187 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 968 transitions. [2022-07-14 07:05:40,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 968 transitions. [2022-07-14 07:05:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:05:40,188 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:40,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:40,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:40,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:40,394 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:40,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:40,394 INFO L85 PathProgramCache]: Analyzing trace with hash 302691164, now seen corresponding path program 1 times [2022-07-14 07:05:40,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:40,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253787468] [2022-07-14 07:05:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:40,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:40,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:40,396 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:40,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 07:05:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:40,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 07:05:40,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:40,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:40,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:40,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:40,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253787468] [2022-07-14 07:05:40,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253787468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:40,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:40,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:40,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285361855] [2022-07-14 07:05:40,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:40,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:40,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:40,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:40,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:40,533 INFO L87 Difference]: Start difference. First operand 689 states and 968 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:40,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:40,629 INFO L93 Difference]: Finished difference Result 705 states and 984 transitions. [2022-07-14 07:05:40,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:40,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-07-14 07:05:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:40,631 INFO L225 Difference]: With dead ends: 705 [2022-07-14 07:05:40,631 INFO L226 Difference]: Without dead ends: 688 [2022-07-14 07:05:40,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:40,632 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 39 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:40,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3848 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:40,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-14 07:05:40,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 688. [2022-07-14 07:05:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 574 states have (on average 1.3832752613240418) internal successors, (794), 580 states have internal predecessors, (794), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 966 transitions. [2022-07-14 07:05:40,644 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 966 transitions. Word has length 36 [2022-07-14 07:05:40,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:40,645 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 966 transitions. [2022-07-14 07:05:40,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:40,645 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 966 transitions. [2022-07-14 07:05:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:05:40,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:40,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:40,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:40,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:40,852 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:40,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:40,853 INFO L85 PathProgramCache]: Analyzing trace with hash 914570012, now seen corresponding path program 1 times [2022-07-14 07:05:40,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:40,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575386989] [2022-07-14 07:05:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:40,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:40,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:40,854 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:40,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 07:05:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:40,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 07:05:40,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:40,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:40,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:40,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575386989] [2022-07-14 07:05:40,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575386989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:40,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:40,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:41,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633843286] [2022-07-14 07:05:41,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:41,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:41,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:41,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:41,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:41,001 INFO L87 Difference]: Start difference. First operand 688 states and 966 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:41,074 INFO L93 Difference]: Finished difference Result 698 states and 976 transitions. [2022-07-14 07:05:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:41,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-07-14 07:05:41,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:41,077 INFO L225 Difference]: With dead ends: 698 [2022-07-14 07:05:41,077 INFO L226 Difference]: Without dead ends: 673 [2022-07-14 07:05:41,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:41,077 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 52 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:41,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3197 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:41,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-07-14 07:05:41,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 673. [2022-07-14 07:05:41,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 559 states have (on average 1.3917710196779964) internal successors, (778), 565 states have internal predecessors, (778), 84 states have call successors, (84), 24 states have call predecessors, (84), 29 states have return successors, (88), 83 states have call predecessors, (88), 77 states have call successors, (88) [2022-07-14 07:05:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 950 transitions. [2022-07-14 07:05:41,085 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 950 transitions. Word has length 36 [2022-07-14 07:05:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:41,086 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 950 transitions. [2022-07-14 07:05:41,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 950 transitions. [2022-07-14 07:05:41,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-14 07:05:41,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:41,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:41,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:41,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:41,297 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:41,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash 366960515, now seen corresponding path program 1 times [2022-07-14 07:05:41,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:41,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471699249] [2022-07-14 07:05:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:41,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:41,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:41,299 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:41,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-14 07:05:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:41,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:41,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:41,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:41,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:41,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471699249] [2022-07-14 07:05:41,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471699249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:41,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:41,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:41,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067052211] [2022-07-14 07:05:41,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:41,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:41,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:41,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:41,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:41,486 INFO L87 Difference]: Start difference. First operand 673 states and 950 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:41,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:41,784 INFO L93 Difference]: Finished difference Result 782 states and 1094 transitions. [2022-07-14 07:05:41,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:41,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-07-14 07:05:41,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:41,790 INFO L225 Difference]: With dead ends: 782 [2022-07-14 07:05:41,790 INFO L226 Difference]: Without dead ends: 780 [2022-07-14 07:05:41,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:41,790 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 749 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:41,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1135 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:41,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-07-14 07:05:41,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 702. [2022-07-14 07:05:41,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 586 states have (on average 1.378839590443686) internal successors, (808), 592 states have internal predecessors, (808), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (90), 85 states have call predecessors, (90), 77 states have call successors, (90) [2022-07-14 07:05:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 982 transitions. [2022-07-14 07:05:41,803 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 982 transitions. Word has length 39 [2022-07-14 07:05:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:41,803 INFO L495 AbstractCegarLoop]: Abstraction has 702 states and 982 transitions. [2022-07-14 07:05:41,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 982 transitions. [2022-07-14 07:05:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-14 07:05:41,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:41,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:41,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:42,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:42,012 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:42,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1196068657, now seen corresponding path program 1 times [2022-07-14 07:05:42,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:42,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810997111] [2022-07-14 07:05:42,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:42,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:42,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:42,014 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:42,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-14 07:05:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:42,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:05:42,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:42,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:42,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:42,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810997111] [2022-07-14 07:05:42,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810997111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:42,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:42,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711831447] [2022-07-14 07:05:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:42,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:42,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:42,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:42,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:42,149 INFO L87 Difference]: Start difference. First operand 702 states and 982 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:42,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:42,265 INFO L93 Difference]: Finished difference Result 720 states and 1001 transitions. [2022-07-14 07:05:42,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:42,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-14 07:05:42,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:42,270 INFO L225 Difference]: With dead ends: 720 [2022-07-14 07:05:42,270 INFO L226 Difference]: Without dead ends: 700 [2022-07-14 07:05:42,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:42,270 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 60 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:42,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3690 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2022-07-14 07:05:42,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2022-07-14 07:05:42,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 584 states have (on average 1.3767123287671232) internal successors, (804), 590 states have internal predecessors, (804), 84 states have call successors, (84), 24 states have call predecessors, (84), 31 states have return successors, (90), 85 states have call predecessors, (90), 77 states have call successors, (90) [2022-07-14 07:05:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 978 transitions. [2022-07-14 07:05:42,282 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 978 transitions. Word has length 40 [2022-07-14 07:05:42,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:42,282 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 978 transitions. [2022-07-14 07:05:42,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:42,283 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 978 transitions. [2022-07-14 07:05:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:42,284 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:42,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:42,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:42,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:42,493 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:42,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:42,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1438594100, now seen corresponding path program 1 times [2022-07-14 07:05:42,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:42,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970958093] [2022-07-14 07:05:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:42,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:42,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:42,495 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:42,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-14 07:05:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:42,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:05:42,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:42,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:42,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:42,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:42,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970958093] [2022-07-14 07:05:42,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970958093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:42,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:42,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:42,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506495489] [2022-07-14 07:05:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:42,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:42,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:42,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:42,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:42,634 INFO L87 Difference]: Start difference. First operand 700 states and 978 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:42,822 INFO L93 Difference]: Finished difference Result 1246 states and 1751 transitions. [2022-07-14 07:05:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:42,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-07-14 07:05:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:42,826 INFO L225 Difference]: With dead ends: 1246 [2022-07-14 07:05:42,827 INFO L226 Difference]: Without dead ends: 1246 [2022-07-14 07:05:42,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:42,827 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 547 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 3923 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:42,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 3923 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:42,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2022-07-14 07:05:42,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1037. [2022-07-14 07:05:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 859 states have (on average 1.4016298020954598) internal successors, (1204), 883 states have internal predecessors, (1204), 126 states have call successors, (126), 41 states have call predecessors, (126), 51 states have return successors, (140), 112 states have call predecessors, (140), 119 states have call successors, (140) [2022-07-14 07:05:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1470 transitions. [2022-07-14 07:05:42,851 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1470 transitions. Word has length 43 [2022-07-14 07:05:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:42,852 INFO L495 AbstractCegarLoop]: Abstraction has 1037 states and 1470 transitions. [2022-07-14 07:05:42,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1470 transitions. [2022-07-14 07:05:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:42,853 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:42,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:42,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:43,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:43,061 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:43,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1615816211, now seen corresponding path program 1 times [2022-07-14 07:05:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:43,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157613370] [2022-07-14 07:05:43,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:43,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:43,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:43,072 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:43,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-14 07:05:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:43,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:43,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:43,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:43,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:43,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157613370] [2022-07-14 07:05:43,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157613370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:43,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:43,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:43,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303996742] [2022-07-14 07:05:43,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:43,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:43,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:43,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:43,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:43,183 INFO L87 Difference]: Start difference. First operand 1037 states and 1470 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:43,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:43,218 INFO L93 Difference]: Finished difference Result 1012 states and 1434 transitions. [2022-07-14 07:05:43,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:43,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-07-14 07:05:43,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:43,221 INFO L225 Difference]: With dead ends: 1012 [2022-07-14 07:05:43,221 INFO L226 Difference]: Without dead ends: 1012 [2022-07-14 07:05:43,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:43,222 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 9 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:43,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1234 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-07-14 07:05:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1012. [2022-07-14 07:05:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 837 states have (on average 1.3990442054958183) internal successors, (1171), 860 states have internal predecessors, (1171), 125 states have call successors, (125), 41 states have call predecessors, (125), 49 states have return successors, (138), 110 states have call predecessors, (138), 119 states have call successors, (138) [2022-07-14 07:05:43,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1434 transitions. [2022-07-14 07:05:43,238 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1434 transitions. Word has length 45 [2022-07-14 07:05:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:43,239 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1434 transitions. [2022-07-14 07:05:43,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1434 transitions. [2022-07-14 07:05:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:43,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:43,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:43,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-07-14 07:05:43,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:43,449 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:43,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:43,449 INFO L85 PathProgramCache]: Analyzing trace with hash -938217641, now seen corresponding path program 1 times [2022-07-14 07:05:43,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:43,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28958901] [2022-07-14 07:05:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:43,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:43,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:43,451 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:43,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-07-14 07:05:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:43,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:43,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:43,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:43,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:43,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28958901] [2022-07-14 07:05:43,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28958901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:43,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:43,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:43,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637471449] [2022-07-14 07:05:43,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:43,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:43,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:43,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:43,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:43,648 INFO L87 Difference]: Start difference. First operand 1012 states and 1434 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:43,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:43,800 INFO L93 Difference]: Finished difference Result 1072 states and 1505 transitions. [2022-07-14 07:05:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:43,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-07-14 07:05:43,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:43,804 INFO L225 Difference]: With dead ends: 1072 [2022-07-14 07:05:43,804 INFO L226 Difference]: Without dead ends: 1060 [2022-07-14 07:05:43,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:43,805 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 17 mSDsluCounter, 4890 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5520 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:43,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5520 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:43,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-07-14 07:05:43,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1033. [2022-07-14 07:05:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.394859813084112) internal successors, (1194), 880 states have internal predecessors, (1194), 125 states have call successors, (125), 41 states have call predecessors, (125), 51 states have return successors, (146), 111 states have call predecessors, (146), 119 states have call successors, (146) [2022-07-14 07:05:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1465 transitions. [2022-07-14 07:05:43,819 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1465 transitions. Word has length 43 [2022-07-14 07:05:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:43,819 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1465 transitions. [2022-07-14 07:05:43,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 8 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1465 transitions. [2022-07-14 07:05:43,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:43,821 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:43,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:43,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-07-14 07:05:44,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:44,028 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:44,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1007838826, now seen corresponding path program 1 times [2022-07-14 07:05:44,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:44,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181447661] [2022-07-14 07:05:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:44,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:44,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:44,030 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:44,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-07-14 07:05:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:44,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:44,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:44,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:44,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:44,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:44,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181447661] [2022-07-14 07:05:44,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181447661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:44,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:44,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:44,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894240091] [2022-07-14 07:05:44,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:44,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:44,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:44,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:44,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:44,238 INFO L87 Difference]: Start difference. First operand 1033 states and 1465 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:44,374 INFO L93 Difference]: Finished difference Result 1072 states and 1504 transitions. [2022-07-14 07:05:44,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:44,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-07-14 07:05:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:44,385 INFO L225 Difference]: With dead ends: 1072 [2022-07-14 07:05:44,385 INFO L226 Difference]: Without dead ends: 1060 [2022-07-14 07:05:44,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:44,387 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 21 mSDsluCounter, 4333 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:44,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4969 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:44,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-07-14 07:05:44,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1033. [2022-07-14 07:05:44,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.394859813084112) internal successors, (1194), 880 states have internal predecessors, (1194), 125 states have call successors, (125), 41 states have call predecessors, (125), 51 states have return successors, (145), 111 states have call predecessors, (145), 119 states have call successors, (145) [2022-07-14 07:05:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1464 transitions. [2022-07-14 07:05:44,405 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1464 transitions. Word has length 44 [2022-07-14 07:05:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:44,405 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1464 transitions. [2022-07-14 07:05:44,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:44,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1464 transitions. [2022-07-14 07:05:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:44,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:44,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:44,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:44,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:44,614 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:44,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash 590562129, now seen corresponding path program 1 times [2022-07-14 07:05:44,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:44,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379777248] [2022-07-14 07:05:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:44,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:44,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:44,616 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:44,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-07-14 07:05:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:44,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:44,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:44,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:44,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:44,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379777248] [2022-07-14 07:05:44,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379777248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:44,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:44,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:44,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789304525] [2022-07-14 07:05:44,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:44,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:44,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:44,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:44,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:44,791 INFO L87 Difference]: Start difference. First operand 1033 states and 1464 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:45,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:45,025 INFO L93 Difference]: Finished difference Result 1064 states and 1496 transitions. [2022-07-14 07:05:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:45,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-07-14 07:05:45,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:45,028 INFO L225 Difference]: With dead ends: 1064 [2022-07-14 07:05:45,028 INFO L226 Difference]: Without dead ends: 1047 [2022-07-14 07:05:45,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:45,029 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 80 mSDsluCounter, 4959 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 5593 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:45,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 5593 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-07-14 07:05:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1031. [2022-07-14 07:05:45,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3929824561403508) internal successors, (1191), 879 states have internal predecessors, (1191), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (144), 110 states have call predecessors, (144), 118 states have call successors, (144) [2022-07-14 07:05:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1459 transitions. [2022-07-14 07:05:45,042 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1459 transitions. Word has length 47 [2022-07-14 07:05:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:45,042 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1459 transitions. [2022-07-14 07:05:45,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:45,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1459 transitions. [2022-07-14 07:05:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:45,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:45,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:45,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:45,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:45,252 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:45,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1771938136, now seen corresponding path program 1 times [2022-07-14 07:05:45,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:45,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40698541] [2022-07-14 07:05:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:45,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:45,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:45,260 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:45,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-07-14 07:05:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:45,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:45,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:45,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:45,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:45,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:45,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40698541] [2022-07-14 07:05:45,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40698541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:45,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:45,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:45,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501506984] [2022-07-14 07:05:45,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:45,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:45,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:45,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:45,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:45,431 INFO L87 Difference]: Start difference. First operand 1031 states and 1459 transitions. Second operand has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:45,620 INFO L93 Difference]: Finished difference Result 1048 states and 1477 transitions. [2022-07-14 07:05:45,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:45,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-07-14 07:05:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:45,623 INFO L225 Difference]: With dead ends: 1048 [2022-07-14 07:05:45,623 INFO L226 Difference]: Without dead ends: 1031 [2022-07-14 07:05:45,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:45,624 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 62 mSDsluCounter, 4841 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:45,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 5455 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-07-14 07:05:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2022-07-14 07:05:45,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3859649122807018) internal successors, (1185), 879 states have internal predecessors, (1185), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (144), 110 states have call predecessors, (144), 118 states have call successors, (144) [2022-07-14 07:05:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1453 transitions. [2022-07-14 07:05:45,640 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1453 transitions. Word has length 44 [2022-07-14 07:05:45,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:45,640 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1453 transitions. [2022-07-14 07:05:45,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1453 transitions. [2022-07-14 07:05:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-14 07:05:45,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:45,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:45,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:45,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:45,849 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:45,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:45,850 INFO L85 PathProgramCache]: Analyzing trace with hash 877591917, now seen corresponding path program 1 times [2022-07-14 07:05:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:45,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752327512] [2022-07-14 07:05:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:45,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:45,852 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:45,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-07-14 07:05:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:45,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:45,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:46,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:46,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:46,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752327512] [2022-07-14 07:05:46,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752327512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:46,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:46,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:46,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836184921] [2022-07-14 07:05:46,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:46,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:46,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:46,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:46,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:46,076 INFO L87 Difference]: Start difference. First operand 1031 states and 1453 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:46,242 INFO L93 Difference]: Finished difference Result 1071 states and 1493 transitions. [2022-07-14 07:05:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-07-14 07:05:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:46,247 INFO L225 Difference]: With dead ends: 1071 [2022-07-14 07:05:46,247 INFO L226 Difference]: Without dead ends: 1058 [2022-07-14 07:05:46,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:46,248 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 29 mSDsluCounter, 5480 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:46,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 6108 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:46,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-07-14 07:05:46,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1031. [2022-07-14 07:05:46,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3859649122807018) internal successors, (1185), 879 states have internal predecessors, (1185), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-07-14 07:05:46,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1452 transitions. [2022-07-14 07:05:46,273 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1452 transitions. Word has length 46 [2022-07-14 07:05:46,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:46,273 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1452 transitions. [2022-07-14 07:05:46,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 9 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:46,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1452 transitions. [2022-07-14 07:05:46,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:46,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:46,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:46,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:46,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:46,483 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:46,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:46,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1691543900, now seen corresponding path program 1 times [2022-07-14 07:05:46,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:46,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676446330] [2022-07-14 07:05:46,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:46,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:46,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:46,485 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:46,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-07-14 07:05:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:46,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:46,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:46,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:46,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:46,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676446330] [2022-07-14 07:05:46,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676446330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:46,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:46,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:46,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077261807] [2022-07-14 07:05:46,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:46,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:46,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:46,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:46,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:46,595 INFO L87 Difference]: Start difference. First operand 1031 states and 1452 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:46,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:46,654 INFO L93 Difference]: Finished difference Result 1052 states and 1475 transitions. [2022-07-14 07:05:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:46,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-14 07:05:46,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:46,658 INFO L225 Difference]: With dead ends: 1052 [2022-07-14 07:05:46,658 INFO L226 Difference]: Without dead ends: 1052 [2022-07-14 07:05:46,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:46,659 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 39 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:46,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1798 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:46,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-07-14 07:05:46,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1033. [2022-07-14 07:05:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 857 states have (on average 1.3850641773628938) internal successors, (1187), 881 states have internal predecessors, (1187), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-07-14 07:05:46,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1454 transitions. [2022-07-14 07:05:46,673 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1454 transitions. Word has length 44 [2022-07-14 07:05:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:46,673 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1454 transitions. [2022-07-14 07:05:46,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1454 transitions. [2022-07-14 07:05:46,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:46,676 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:46,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:46,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:46,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:46,883 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:46,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1825557406, now seen corresponding path program 1 times [2022-07-14 07:05:46,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:46,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577546667] [2022-07-14 07:05:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:46,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:46,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:46,885 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:46,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-07-14 07:05:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:46,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:05:46,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:47,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:47,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:47,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:47,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577546667] [2022-07-14 07:05:47,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577546667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:47,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:47,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:47,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140529875] [2022-07-14 07:05:47,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:47,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:47,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:47,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:47,034 INFO L87 Difference]: Start difference. First operand 1033 states and 1454 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:47,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:47,148 INFO L93 Difference]: Finished difference Result 1051 states and 1473 transitions. [2022-07-14 07:05:47,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:47,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-14 07:05:47,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:47,152 INFO L225 Difference]: With dead ends: 1051 [2022-07-14 07:05:47,152 INFO L226 Difference]: Without dead ends: 1031 [2022-07-14 07:05:47,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:47,152 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 60 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:47,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3626 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:47,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-07-14 07:05:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2022-07-14 07:05:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3812865497076023) internal successors, (1181), 879 states have internal predecessors, (1181), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-07-14 07:05:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1448 transitions. [2022-07-14 07:05:47,170 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1448 transitions. Word has length 44 [2022-07-14 07:05:47,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:47,171 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1448 transitions. [2022-07-14 07:05:47,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1448 transitions. [2022-07-14 07:05:47,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:47,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:47,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:47,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:47,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:47,380 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash 345167796, now seen corresponding path program 1 times [2022-07-14 07:05:47,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:47,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719921968] [2022-07-14 07:05:47,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:47,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:47,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:47,382 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:47,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-07-14 07:05:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:47,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:47,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:47,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:47,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:47,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719921968] [2022-07-14 07:05:47,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719921968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:47,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:47,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:47,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890174854] [2022-07-14 07:05:47,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:47,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:47,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:47,483 INFO L87 Difference]: Start difference. First operand 1031 states and 1448 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:47,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:47,489 INFO L93 Difference]: Finished difference Result 1047 states and 1464 transitions. [2022-07-14 07:05:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:47,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-14 07:05:47,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:47,492 INFO L225 Difference]: With dead ends: 1047 [2022-07-14 07:05:47,492 INFO L226 Difference]: Without dead ends: 1047 [2022-07-14 07:05:47,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:47,493 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 19 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:47,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1235 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:47,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-07-14 07:05:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1031. [2022-07-14 07:05:47,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 855 states have (on average 1.3801169590643274) internal successors, (1180), 879 states have internal predecessors, (1180), 124 states have call successors, (124), 41 states have call predecessors, (124), 51 states have return successors, (143), 110 states have call predecessors, (143), 118 states have call successors, (143) [2022-07-14 07:05:47,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1447 transitions. [2022-07-14 07:05:47,507 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1447 transitions. Word has length 44 [2022-07-14 07:05:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:47,507 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1447 transitions. [2022-07-14 07:05:47,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1447 transitions. [2022-07-14 07:05:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:47,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:47,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:47,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:47,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:47,710 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:47,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:47,710 INFO L85 PathProgramCache]: Analyzing trace with hash 211154290, now seen corresponding path program 1 times [2022-07-14 07:05:47,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:47,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334604651] [2022-07-14 07:05:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:47,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:47,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:47,711 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:47,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-07-14 07:05:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:47,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:05:47,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:47,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:47,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:47,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334604651] [2022-07-14 07:05:47,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334604651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:47,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:47,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:47,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492283933] [2022-07-14 07:05:47,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:47,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:47,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:47,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:47,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:47,867 INFO L87 Difference]: Start difference. First operand 1031 states and 1447 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:47,997 INFO L93 Difference]: Finished difference Result 1046 states and 1462 transitions. [2022-07-14 07:05:47,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:47,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-14 07:05:47,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:48,001 INFO L225 Difference]: With dead ends: 1046 [2022-07-14 07:05:48,001 INFO L226 Difference]: Without dead ends: 1019 [2022-07-14 07:05:48,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:48,002 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 68 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:48,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 3584 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:48,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2022-07-14 07:05:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2022-07-14 07:05:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 846 states have (on average 1.3747044917257683) internal successors, (1163), 870 states have internal predecessors, (1163), 121 states have call successors, (121), 41 states have call predecessors, (121), 51 states have return successors, (140), 107 states have call predecessors, (140), 115 states have call successors, (140) [2022-07-14 07:05:48,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1424 transitions. [2022-07-14 07:05:48,024 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1424 transitions. Word has length 44 [2022-07-14 07:05:48,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:48,024 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1424 transitions. [2022-07-14 07:05:48,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:48,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1424 transitions. [2022-07-14 07:05:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:48,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:48,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:48,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:48,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:48,236 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:48,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1307777067, now seen corresponding path program 1 times [2022-07-14 07:05:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:48,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899979864] [2022-07-14 07:05:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:48,237 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:48,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:48,239 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:48,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-07-14 07:05:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:48,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:48,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:48,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:48,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:48,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:48,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899979864] [2022-07-14 07:05:48,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899979864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:48,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:48,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:48,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303228204] [2022-07-14 07:05:48,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:48,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:48,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:48,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:48,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:48,353 INFO L87 Difference]: Start difference. First operand 1019 states and 1424 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:48,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:48,474 INFO L93 Difference]: Finished difference Result 1061 states and 1498 transitions. [2022-07-14 07:05:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:48,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-07-14 07:05:48,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:48,484 INFO L225 Difference]: With dead ends: 1061 [2022-07-14 07:05:48,484 INFO L226 Difference]: Without dead ends: 1061 [2022-07-14 07:05:48,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:48,484 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 21 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:48,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1702 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-07-14 07:05:48,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1033. [2022-07-14 07:05:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 856 states have (on average 1.375) internal successors, (1177), 882 states have internal predecessors, (1177), 123 states have call successors, (123), 41 states have call predecessors, (123), 53 states have return successors, (154), 109 states have call predecessors, (154), 117 states have call successors, (154) [2022-07-14 07:05:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1454 transitions. [2022-07-14 07:05:48,504 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1454 transitions. Word has length 45 [2022-07-14 07:05:48,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:48,504 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1454 transitions. [2022-07-14 07:05:48,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1454 transitions. [2022-07-14 07:05:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:48,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:48,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:48,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:48,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:48,714 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:48,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:48,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1817250157, now seen corresponding path program 1 times [2022-07-14 07:05:48,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:48,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225611399] [2022-07-14 07:05:48,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:48,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:48,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:48,716 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:48,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-07-14 07:05:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:48,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:05:48,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:48,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:48,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:48,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225611399] [2022-07-14 07:05:48,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225611399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:48,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:48,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000657310] [2022-07-14 07:05:48,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:48,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:48,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:48,869 INFO L87 Difference]: Start difference. First operand 1033 states and 1454 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:48,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:48,976 INFO L93 Difference]: Finished difference Result 1068 states and 1530 transitions. [2022-07-14 07:05:48,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:48,976 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-07-14 07:05:48,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:48,979 INFO L225 Difference]: With dead ends: 1068 [2022-07-14 07:05:48,979 INFO L226 Difference]: Without dead ends: 1049 [2022-07-14 07:05:48,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:48,980 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 60 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:48,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4772 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:48,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-07-14 07:05:48,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1041. [2022-07-14 07:05:48,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (186), 109 states have call predecessors, (186), 117 states have call successors, (186) [2022-07-14 07:05:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1490 transitions. [2022-07-14 07:05:48,995 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1490 transitions. Word has length 45 [2022-07-14 07:05:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:48,995 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1490 transitions. [2022-07-14 07:05:48,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1490 transitions. [2022-07-14 07:05:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:49,000 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:49,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:49,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:49,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:49,207 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:49,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:49,208 INFO L85 PathProgramCache]: Analyzing trace with hash -201116362, now seen corresponding path program 1 times [2022-07-14 07:05:49,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:49,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189544642] [2022-07-14 07:05:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:49,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:49,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:49,209 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:49,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-07-14 07:05:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:49,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:05:49,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:49,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:49,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:49,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189544642] [2022-07-14 07:05:49,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189544642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:49,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:49,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:49,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18056074] [2022-07-14 07:05:49,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:49,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:49,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:49,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:49,422 INFO L87 Difference]: Start difference. First operand 1041 states and 1490 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:49,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:49,593 INFO L93 Difference]: Finished difference Result 1082 states and 1531 transitions. [2022-07-14 07:05:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:49,594 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-07-14 07:05:49,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:49,597 INFO L225 Difference]: With dead ends: 1082 [2022-07-14 07:05:49,597 INFO L226 Difference]: Without dead ends: 1068 [2022-07-14 07:05:49,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:49,597 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 46 mSDsluCounter, 5308 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:49,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5917 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:49,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-07-14 07:05:49,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2022-07-14 07:05:49,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (185), 109 states have call predecessors, (185), 117 states have call successors, (185) [2022-07-14 07:05:49,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1489 transitions. [2022-07-14 07:05:49,611 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1489 transitions. Word has length 47 [2022-07-14 07:05:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:49,612 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1489 transitions. [2022-07-14 07:05:49,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1489 transitions. [2022-07-14 07:05:49,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:49,617 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:49,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:49,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:49,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:49,824 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:49,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:49,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1741355878, now seen corresponding path program 1 times [2022-07-14 07:05:49,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:49,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193619182] [2022-07-14 07:05:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:49,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:49,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:49,828 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:49,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-07-14 07:05:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:49,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:05:49,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:50,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:50,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:50,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193619182] [2022-07-14 07:05:50,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193619182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:50,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:50,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:50,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966398218] [2022-07-14 07:05:50,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:50,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:50,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:50,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:50,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:50,047 INFO L87 Difference]: Start difference. First operand 1041 states and 1489 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:50,222 INFO L93 Difference]: Finished difference Result 1082 states and 1530 transitions. [2022-07-14 07:05:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:50,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-14 07:05:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:50,225 INFO L225 Difference]: With dead ends: 1082 [2022-07-14 07:05:50,225 INFO L226 Difference]: Without dead ends: 1068 [2022-07-14 07:05:50,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:50,226 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 46 mSDsluCounter, 5284 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5889 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:50,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5889 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-07-14 07:05:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2022-07-14 07:05:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (184), 109 states have call predecessors, (184), 117 states have call successors, (184) [2022-07-14 07:05:50,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1488 transitions. [2022-07-14 07:05:50,240 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1488 transitions. Word has length 48 [2022-07-14 07:05:50,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:50,240 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1488 transitions. [2022-07-14 07:05:50,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:50,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1488 transitions. [2022-07-14 07:05:50,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:50,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:50,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:50,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:50,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:50,450 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:50,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:50,450 INFO L85 PathProgramCache]: Analyzing trace with hash -495181895, now seen corresponding path program 1 times [2022-07-14 07:05:50,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:50,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532792914] [2022-07-14 07:05:50,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:50,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:50,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:50,451 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:50,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-07-14 07:05:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:50,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:05:50,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:50,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:50,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:50,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532792914] [2022-07-14 07:05:50,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532792914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:50,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:50,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:50,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33866771] [2022-07-14 07:05:50,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:50,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:50,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:50,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:50,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:50,685 INFO L87 Difference]: Start difference. First operand 1041 states and 1488 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:50,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:50,861 INFO L93 Difference]: Finished difference Result 1082 states and 1529 transitions. [2022-07-14 07:05:50,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:50,862 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-07-14 07:05:50,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:50,865 INFO L225 Difference]: With dead ends: 1082 [2022-07-14 07:05:50,865 INFO L226 Difference]: Without dead ends: 1068 [2022-07-14 07:05:50,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:50,866 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 42 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:50,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 6466 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:50,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2022-07-14 07:05:50,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1041. [2022-07-14 07:05:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 890 states have internal predecessors, (1181), 123 states have call successors, (123), 41 states have call predecessors, (123), 57 states have return successors, (183), 109 states have call predecessors, (183), 117 states have call successors, (183) [2022-07-14 07:05:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1487 transitions. [2022-07-14 07:05:50,898 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1487 transitions. Word has length 54 [2022-07-14 07:05:50,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:50,898 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1487 transitions. [2022-07-14 07:05:50,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1487 transitions. [2022-07-14 07:05:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-14 07:05:50,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:50,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:50,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:51,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:51,110 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:51,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1309709834, now seen corresponding path program 1 times [2022-07-14 07:05:51,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:51,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509766178] [2022-07-14 07:05:51,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:51,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:51,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:51,112 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:51,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-07-14 07:05:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:51,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:51,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:51,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:51,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:51,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509766178] [2022-07-14 07:05:51,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509766178] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:51,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:51,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:51,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047363906] [2022-07-14 07:05:51,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:51,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:51,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:51,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:51,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:51,318 INFO L87 Difference]: Start difference. First operand 1041 states and 1487 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:51,490 INFO L93 Difference]: Finished difference Result 1110 states and 1567 transitions. [2022-07-14 07:05:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:51,490 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-07-14 07:05:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:51,493 INFO L225 Difference]: With dead ends: 1110 [2022-07-14 07:05:51,493 INFO L226 Difference]: Without dead ends: 1098 [2022-07-14 07:05:51,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:51,494 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 17 mSDsluCounter, 4765 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5383 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:51,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5383 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-07-14 07:05:51,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1062. [2022-07-14 07:05:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3697383390216156) internal successors, (1204), 910 states have internal predecessors, (1204), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (191), 110 states have call predecessors, (191), 117 states have call successors, (191) [2022-07-14 07:05:51,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1518 transitions. [2022-07-14 07:05:51,528 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1518 transitions. Word has length 46 [2022-07-14 07:05:51,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:51,528 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1518 transitions. [2022-07-14 07:05:51,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:51,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1518 transitions. [2022-07-14 07:05:51,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:51,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:51,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:51,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:51,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:51,742 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:51,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1991597085, now seen corresponding path program 1 times [2022-07-14 07:05:51,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:51,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006361322] [2022-07-14 07:05:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:51,743 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:51,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:51,744 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:51,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-07-14 07:05:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:51,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:51,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:51,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:51,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:51,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:51,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006361322] [2022-07-14 07:05:51,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006361322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:51,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:51,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:51,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182533447] [2022-07-14 07:05:51,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:51,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:51,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:51,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:51,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:51,925 INFO L87 Difference]: Start difference. First operand 1062 states and 1518 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:52,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:52,058 INFO L93 Difference]: Finished difference Result 1110 states and 1566 transitions. [2022-07-14 07:05:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:52,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-07-14 07:05:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:52,061 INFO L225 Difference]: With dead ends: 1110 [2022-07-14 07:05:52,061 INFO L226 Difference]: Without dead ends: 1098 [2022-07-14 07:05:52,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:52,062 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 21 mSDsluCounter, 4175 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:52,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4792 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:52,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-07-14 07:05:52,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1062. [2022-07-14 07:05:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3697383390216156) internal successors, (1204), 910 states have internal predecessors, (1204), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (190), 110 states have call predecessors, (190), 117 states have call successors, (190) [2022-07-14 07:05:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1517 transitions. [2022-07-14 07:05:52,075 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1517 transitions. Word has length 45 [2022-07-14 07:05:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:52,075 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1517 transitions. [2022-07-14 07:05:52,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1517 transitions. [2022-07-14 07:05:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:52,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:52,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:52,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:52,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:52,285 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:52,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1530884490, now seen corresponding path program 1 times [2022-07-14 07:05:52,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:52,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656779390] [2022-07-14 07:05:52,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:52,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:52,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:52,287 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:52,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-07-14 07:05:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:52,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:52,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:52,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:52,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:52,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656779390] [2022-07-14 07:05:52,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656779390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:52,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:52,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:52,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871381005] [2022-07-14 07:05:52,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:52,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:52,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:52,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:52,395 INFO L87 Difference]: Start difference. First operand 1062 states and 1517 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:52,402 INFO L93 Difference]: Finished difference Result 1078 states and 1533 transitions. [2022-07-14 07:05:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:52,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-14 07:05:52,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:52,404 INFO L225 Difference]: With dead ends: 1078 [2022-07-14 07:05:52,405 INFO L226 Difference]: Without dead ends: 1078 [2022-07-14 07:05:52,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:52,405 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 19 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:52,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1211 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:52,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-07-14 07:05:52,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1062. [2022-07-14 07:05:52,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 879 states have (on average 1.3686006825938566) internal successors, (1203), 910 states have internal predecessors, (1203), 123 states have call successors, (123), 41 states have call predecessors, (123), 59 states have return successors, (190), 110 states have call predecessors, (190), 117 states have call successors, (190) [2022-07-14 07:05:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1516 transitions. [2022-07-14 07:05:52,418 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1516 transitions. Word has length 45 [2022-07-14 07:05:52,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:52,418 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1516 transitions. [2022-07-14 07:05:52,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1516 transitions. [2022-07-14 07:05:52,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:52,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:52,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:52,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:52,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:52,627 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:52,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:52,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1664897996, now seen corresponding path program 1 times [2022-07-14 07:05:52,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:52,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208403833] [2022-07-14 07:05:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:52,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:52,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:52,630 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:52,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-07-14 07:05:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:52,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:05:52,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:52,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:52,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:52,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208403833] [2022-07-14 07:05:52,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208403833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:52,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:52,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:52,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220708684] [2022-07-14 07:05:52,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:52,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:52,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:52,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:52,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:52,774 INFO L87 Difference]: Start difference. First operand 1062 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:52,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:52,876 INFO L93 Difference]: Finished difference Result 1086 states and 1545 transitions. [2022-07-14 07:05:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:52,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-14 07:05:52,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:52,879 INFO L225 Difference]: With dead ends: 1086 [2022-07-14 07:05:52,879 INFO L226 Difference]: Without dead ends: 1054 [2022-07-14 07:05:52,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:52,879 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 76 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3521 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:52,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 3521 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:52,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-07-14 07:05:52,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1054. [2022-07-14 07:05:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 873 states have (on average 1.3642611683848798) internal successors, (1191), 904 states have internal predecessors, (1191), 121 states have call successors, (121), 41 states have call predecessors, (121), 59 states have return successors, (188), 108 states have call predecessors, (188), 115 states have call successors, (188) [2022-07-14 07:05:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1500 transitions. [2022-07-14 07:05:52,901 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1500 transitions. Word has length 45 [2022-07-14 07:05:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:52,901 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1500 transitions. [2022-07-14 07:05:52,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1500 transitions. [2022-07-14 07:05:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:52,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:52,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:52,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:53,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:53,110 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:53,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1130031656, now seen corresponding path program 1 times [2022-07-14 07:05:53,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:53,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665364501] [2022-07-14 07:05:53,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:53,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:53,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:53,112 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:53,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-07-14 07:05:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:53,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:53,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:53,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:53,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:53,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665364501] [2022-07-14 07:05:53,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665364501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:53,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:53,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:53,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573977111] [2022-07-14 07:05:53,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:53,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:53,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:53,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:53,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:53,211 INFO L87 Difference]: Start difference. First operand 1054 states and 1500 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:53,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:53,218 INFO L93 Difference]: Finished difference Result 1070 states and 1516 transitions. [2022-07-14 07:05:53,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:53,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-14 07:05:53,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:53,220 INFO L225 Difference]: With dead ends: 1070 [2022-07-14 07:05:53,220 INFO L226 Difference]: Without dead ends: 1070 [2022-07-14 07:05:53,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:53,220 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 19 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:53,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:53,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-07-14 07:05:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1054. [2022-07-14 07:05:53,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 873 states have (on average 1.3631156930126003) internal successors, (1190), 904 states have internal predecessors, (1190), 121 states have call successors, (121), 41 states have call predecessors, (121), 59 states have return successors, (188), 108 states have call predecessors, (188), 115 states have call successors, (188) [2022-07-14 07:05:53,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1499 transitions. [2022-07-14 07:05:53,235 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1499 transitions. Word has length 45 [2022-07-14 07:05:53,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:53,237 INFO L495 AbstractCegarLoop]: Abstraction has 1054 states and 1499 transitions. [2022-07-14 07:05:53,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1499 transitions. [2022-07-14 07:05:53,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:53,241 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:53,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:53,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:53,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:53,448 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:53,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:53,448 INFO L85 PathProgramCache]: Analyzing trace with hash 996018150, now seen corresponding path program 1 times [2022-07-14 07:05:53,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:53,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483175140] [2022-07-14 07:05:53,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:53,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:53,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:53,450 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:53,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-07-14 07:05:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:53,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:05:53,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:53,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:53,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:53,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483175140] [2022-07-14 07:05:53,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483175140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:53,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:53,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:53,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099946478] [2022-07-14 07:05:53,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:53,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:53,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:53,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:53,578 INFO L87 Difference]: Start difference. First operand 1054 states and 1499 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:53,667 INFO L93 Difference]: Finished difference Result 1069 states and 1514 transitions. [2022-07-14 07:05:53,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:53,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-07-14 07:05:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:53,669 INFO L225 Difference]: With dead ends: 1069 [2022-07-14 07:05:53,669 INFO L226 Difference]: Without dead ends: 1046 [2022-07-14 07:05:53,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:53,670 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 64 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:53,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 3414 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:53,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2022-07-14 07:05:53,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2022-07-14 07:05:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 867 states have (on average 1.3598615916955017) internal successors, (1179), 898 states have internal predecessors, (1179), 119 states have call successors, (119), 41 states have call predecessors, (119), 59 states have return successors, (186), 106 states have call predecessors, (186), 113 states have call successors, (186) [2022-07-14 07:05:53,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1484 transitions. [2022-07-14 07:05:53,683 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1484 transitions. Word has length 45 [2022-07-14 07:05:53,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:53,683 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1484 transitions. [2022-07-14 07:05:53,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:53,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1484 transitions. [2022-07-14 07:05:53,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 07:05:53,685 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:53,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:53,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:53,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:53,892 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:53,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash -688570704, now seen corresponding path program 1 times [2022-07-14 07:05:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:53,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935020076] [2022-07-14 07:05:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:53,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:53,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:53,894 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:53,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-07-14 07:05:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:53,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:05:53,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:54,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:54,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:54,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935020076] [2022-07-14 07:05:54,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935020076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:54,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:54,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009640750] [2022-07-14 07:05:54,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:54,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:54,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:54,014 INFO L87 Difference]: Start difference. First operand 1046 states and 1484 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:54,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:54,036 INFO L93 Difference]: Finished difference Result 1038 states and 1468 transitions. [2022-07-14 07:05:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:54,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-07-14 07:05:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:54,038 INFO L225 Difference]: With dead ends: 1038 [2022-07-14 07:05:54,039 INFO L226 Difference]: Without dead ends: 1038 [2022-07-14 07:05:54,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:54,041 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 34 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:54,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 2948 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-07-14 07:05:54,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1032. [2022-07-14 07:05:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 853 states have (on average 1.3563892145369285) internal successors, (1157), 884 states have internal predecessors, (1157), 119 states have call successors, (119), 41 states have call predecessors, (119), 59 states have return successors, (186), 106 states have call predecessors, (186), 113 states have call successors, (186) [2022-07-14 07:05:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1462 transitions. [2022-07-14 07:05:54,056 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1462 transitions. Word has length 49 [2022-07-14 07:05:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:54,056 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1462 transitions. [2022-07-14 07:05:54,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1462 transitions. [2022-07-14 07:05:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:54,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:54,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:54,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:54,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:54,263 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:54,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1799473543, now seen corresponding path program 1 times [2022-07-14 07:05:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:54,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344589770] [2022-07-14 07:05:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:54,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:54,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:54,266 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:54,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-07-14 07:05:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:54,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:54,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:54,457 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:54,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:54,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344589770] [2022-07-14 07:05:54,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344589770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:54,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:54,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:54,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79506930] [2022-07-14 07:05:54,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:54,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:54,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:54,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:54,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:54,458 INFO L87 Difference]: Start difference. First operand 1032 states and 1462 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:54,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:54,615 INFO L93 Difference]: Finished difference Result 1077 states and 1503 transitions. [2022-07-14 07:05:54,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:54,616 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2022-07-14 07:05:54,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:54,618 INFO L225 Difference]: With dead ends: 1077 [2022-07-14 07:05:54,618 INFO L226 Difference]: Without dead ends: 1064 [2022-07-14 07:05:54,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:54,619 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 17 mSDsluCounter, 4524 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5113 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:54,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5113 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:54,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-07-14 07:05:54,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1018. [2022-07-14 07:05:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 840 states have (on average 1.35) internal successors, (1134), 871 states have internal predecessors, (1134), 118 states have call successors, (118), 41 states have call predecessors, (118), 59 states have return successors, (185), 105 states have call predecessors, (185), 112 states have call successors, (185) [2022-07-14 07:05:54,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1437 transitions. [2022-07-14 07:05:54,632 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1437 transitions. Word has length 47 [2022-07-14 07:05:54,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:54,632 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1437 transitions. [2022-07-14 07:05:54,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1437 transitions. [2022-07-14 07:05:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-14 07:05:54,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:54,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:54,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:54,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:54,842 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:54,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:54,842 INFO L85 PathProgramCache]: Analyzing trace with hash -487130130, now seen corresponding path program 1 times [2022-07-14 07:05:54,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:54,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704756348] [2022-07-14 07:05:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:54,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:54,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:54,844 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:54,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-07-14 07:05:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:54,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:54,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:55,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:55,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:55,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704756348] [2022-07-14 07:05:55,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704756348] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:55,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:55,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:55,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525073958] [2022-07-14 07:05:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:55,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:55,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:55,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:55,041 INFO L87 Difference]: Start difference. First operand 1018 states and 1437 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:55,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:55,212 INFO L93 Difference]: Finished difference Result 1074 states and 1497 transitions. [2022-07-14 07:05:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:55,212 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-07-14 07:05:55,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:55,214 INFO L225 Difference]: With dead ends: 1074 [2022-07-14 07:05:55,214 INFO L226 Difference]: Without dead ends: 1061 [2022-07-14 07:05:55,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:55,215 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 17 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:55,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5085 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:55,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-07-14 07:05:55,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1006. [2022-07-14 07:05:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 831 states have (on average 1.3513838748495788) internal successors, (1123), 861 states have internal predecessors, (1123), 117 states have call successors, (117), 41 states have call predecessors, (117), 57 states have return successors, (177), 103 states have call predecessors, (177), 111 states have call successors, (177) [2022-07-14 07:05:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1417 transitions. [2022-07-14 07:05:55,227 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1417 transitions. Word has length 46 [2022-07-14 07:05:55,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:55,228 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1417 transitions. [2022-07-14 07:05:55,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1417 transitions. [2022-07-14 07:05:55,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:55,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:55,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:55,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2022-07-14 07:05:55,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:55,440 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:55,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:55,440 INFO L85 PathProgramCache]: Analyzing trace with hash 484610396, now seen corresponding path program 1 times [2022-07-14 07:05:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:55,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132727230] [2022-07-14 07:05:55,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:55,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:55,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:55,442 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:55,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2022-07-14 07:05:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:55,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:55,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:55,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:55,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:55,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:55,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132727230] [2022-07-14 07:05:55,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132727230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:55,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:55,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:55,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968041629] [2022-07-14 07:05:55,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:55,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:55,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:55,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:55,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:55,622 INFO L87 Difference]: Start difference. First operand 1006 states and 1417 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:55,803 INFO L93 Difference]: Finished difference Result 1021 states and 1432 transitions. [2022-07-14 07:05:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:55,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2022-07-14 07:05:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:55,806 INFO L225 Difference]: With dead ends: 1021 [2022-07-14 07:05:55,806 INFO L226 Difference]: Without dead ends: 1004 [2022-07-14 07:05:55,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:55,806 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 62 mSDsluCounter, 4331 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:55,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4881 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-07-14 07:05:55,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2022-07-14 07:05:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 830 states have (on average 1.3493975903614457) internal successors, (1120), 860 states have internal predecessors, (1120), 116 states have call successors, (116), 41 states have call predecessors, (116), 57 states have return successors, (176), 102 states have call predecessors, (176), 110 states have call successors, (176) [2022-07-14 07:05:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1412 transitions. [2022-07-14 07:05:55,819 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1412 transitions. Word has length 48 [2022-07-14 07:05:55,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:55,819 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1412 transitions. [2022-07-14 07:05:55,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:55,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1412 transitions. [2022-07-14 07:05:55,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:55,821 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:55,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:55,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:56,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:56,029 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:56,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1904148279, now seen corresponding path program 1 times [2022-07-14 07:05:56,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:56,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162237486] [2022-07-14 07:05:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:56,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:56,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:56,031 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:56,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2022-07-14 07:05:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:56,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:56,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:56,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:56,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162237486] [2022-07-14 07:05:56,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162237486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:56,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:56,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334900694] [2022-07-14 07:05:56,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:56,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:56,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:56,186 INFO L87 Difference]: Start difference. First operand 1004 states and 1412 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:56,366 INFO L93 Difference]: Finished difference Result 1021 states and 1430 transitions. [2022-07-14 07:05:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-07-14 07:05:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:56,371 INFO L225 Difference]: With dead ends: 1021 [2022-07-14 07:05:56,371 INFO L226 Difference]: Without dead ends: 1004 [2022-07-14 07:05:56,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:56,373 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 62 mSDsluCounter, 4313 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4860 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:56,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4860 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-07-14 07:05:56,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1004. [2022-07-14 07:05:56,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 830 states have (on average 1.344578313253012) internal successors, (1116), 860 states have internal predecessors, (1116), 116 states have call successors, (116), 41 states have call predecessors, (116), 57 states have return successors, (176), 102 states have call predecessors, (176), 110 states have call successors, (176) [2022-07-14 07:05:56,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1408 transitions. [2022-07-14 07:05:56,385 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1408 transitions. Word has length 47 [2022-07-14 07:05:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:56,385 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1408 transitions. [2022-07-14 07:05:56,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:56,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1408 transitions. [2022-07-14 07:05:56,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:56,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:56,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:56,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (50)] Ended with exit code 0 [2022-07-14 07:05:56,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:56,594 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:56,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2046804371, now seen corresponding path program 1 times [2022-07-14 07:05:56,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:56,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382194811] [2022-07-14 07:05:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:56,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:56,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:56,597 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:56,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-07-14 07:05:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:56,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:56,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:56,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:56,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:56,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382194811] [2022-07-14 07:05:56,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382194811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:56,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:56,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:56,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800704468] [2022-07-14 07:05:56,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:56,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:56,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:56,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:56,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:56,701 INFO L87 Difference]: Start difference. First operand 1004 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:56,730 INFO L93 Difference]: Finished difference Result 1033 states and 1448 transitions. [2022-07-14 07:05:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:56,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-07-14 07:05:56,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:56,732 INFO L225 Difference]: With dead ends: 1033 [2022-07-14 07:05:56,732 INFO L226 Difference]: Without dead ends: 1033 [2022-07-14 07:05:56,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:56,733 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 39 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:56,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2262 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:56,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-07-14 07:05:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1012. [2022-07-14 07:05:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 836 states have (on average 1.3421052631578947) internal successors, (1122), 866 states have internal predecessors, (1122), 116 states have call successors, (116), 41 states have call predecessors, (116), 59 states have return successors, (186), 104 states have call predecessors, (186), 110 states have call successors, (186) [2022-07-14 07:05:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1424 transitions. [2022-07-14 07:05:56,746 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1424 transitions. Word has length 47 [2022-07-14 07:05:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:56,746 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1424 transitions. [2022-07-14 07:05:56,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1424 transitions. [2022-07-14 07:05:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:56,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:56,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:56,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:56,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:56,956 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:56,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:56,956 INFO L85 PathProgramCache]: Analyzing trace with hash 791864886, now seen corresponding path program 1 times [2022-07-14 07:05:56,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:56,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576074043] [2022-07-14 07:05:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:56,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:56,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:56,957 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:56,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2022-07-14 07:05:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:57,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:05:57,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:57,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:57,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:57,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576074043] [2022-07-14 07:05:57,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576074043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:57,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:57,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:57,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202455621] [2022-07-14 07:05:57,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:57,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:57,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:57,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:57,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:57,056 INFO L87 Difference]: Start difference. First operand 1012 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:57,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:57,067 INFO L93 Difference]: Finished difference Result 964 states and 1315 transitions. [2022-07-14 07:05:57,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:57,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2022-07-14 07:05:57,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:57,069 INFO L225 Difference]: With dead ends: 964 [2022-07-14 07:05:57,069 INFO L226 Difference]: Without dead ends: 962 [2022-07-14 07:05:57,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:57,070 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 3 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:57,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1072 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:57,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-07-14 07:05:57,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 865. [2022-07-14 07:05:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 726 states have (on average 1.334710743801653) internal successors, (969), 743 states have internal predecessors, (969), 87 states have call successors, (87), 38 states have call predecessors, (87), 51 states have return successors, (115), 83 states have call predecessors, (115), 81 states have call successors, (115) [2022-07-14 07:05:57,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1171 transitions. [2022-07-14 07:05:57,078 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1171 transitions. Word has length 47 [2022-07-14 07:05:57,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:57,078 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1171 transitions. [2022-07-14 07:05:57,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:57,079 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1171 transitions. [2022-07-14 07:05:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:05:57,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:57,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:57,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:57,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:57,287 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:57,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1366311556, now seen corresponding path program 1 times [2022-07-14 07:05:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:57,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515435824] [2022-07-14 07:05:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:57,288 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:57,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:57,289 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:57,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2022-07-14 07:05:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:57,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:57,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:57,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:57,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:57,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:57,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515435824] [2022-07-14 07:05:57,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515435824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:57,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:57,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:57,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057352294] [2022-07-14 07:05:57,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:57,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:57,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:57,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:57,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:57,450 INFO L87 Difference]: Start difference. First operand 865 states and 1171 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:57,598 INFO L93 Difference]: Finished difference Result 896 states and 1203 transitions. [2022-07-14 07:05:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:57,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 52 [2022-07-14 07:05:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:57,600 INFO L225 Difference]: With dead ends: 896 [2022-07-14 07:05:57,600 INFO L226 Difference]: Without dead ends: 879 [2022-07-14 07:05:57,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:57,600 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 64 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:57,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4849 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-07-14 07:05:57,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 863. [2022-07-14 07:05:57,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 725 states have (on average 1.333793103448276) internal successors, (967), 742 states have internal predecessors, (967), 86 states have call successors, (86), 38 states have call predecessors, (86), 51 states have return successors, (114), 82 states have call predecessors, (114), 80 states have call successors, (114) [2022-07-14 07:05:57,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1167 transitions. [2022-07-14 07:05:57,624 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1167 transitions. Word has length 52 [2022-07-14 07:05:57,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:57,624 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1167 transitions. [2022-07-14 07:05:57,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:57,625 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1167 transitions. [2022-07-14 07:05:57,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 07:05:57,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:57,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:57,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (53)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:57,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:57,833 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:57,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:57,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1918382277, now seen corresponding path program 1 times [2022-07-14 07:05:57,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:57,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442500942] [2022-07-14 07:05:57,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:57,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:57,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:57,836 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:57,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-07-14 07:05:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:57,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:57,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:57,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:57,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442500942] [2022-07-14 07:05:57,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442500942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:57,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:57,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:57,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340645982] [2022-07-14 07:05:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:57,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:57,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:57,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:57,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:57,966 INFO L87 Difference]: Start difference. First operand 863 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:57,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:57,993 INFO L93 Difference]: Finished difference Result 883 states and 1189 transitions. [2022-07-14 07:05:57,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:57,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2022-07-14 07:05:57,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:57,996 INFO L225 Difference]: With dead ends: 883 [2022-07-14 07:05:57,996 INFO L226 Difference]: Without dead ends: 883 [2022-07-14 07:05:57,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:57,996 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 28 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:57,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2160 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-07-14 07:05:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 865. [2022-07-14 07:05:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 727 states have (on average 1.3328748280605227) internal successors, (969), 743 states have internal predecessors, (969), 86 states have call successors, (86), 38 states have call predecessors, (86), 51 states have return successors, (114), 83 states have call predecessors, (114), 80 states have call successors, (114) [2022-07-14 07:05:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1169 transitions. [2022-07-14 07:05:58,005 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1169 transitions. Word has length 49 [2022-07-14 07:05:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:58,005 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1169 transitions. [2022-07-14 07:05:58,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:05:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1169 transitions. [2022-07-14 07:05:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:58,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:58,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:58,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:58,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:58,215 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:58,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1443534431, now seen corresponding path program 1 times [2022-07-14 07:05:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:58,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045738382] [2022-07-14 07:05:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:58,216 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:58,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:58,224 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:58,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Waiting until timeout for monitored process [2022-07-14 07:05:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:58,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:58,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:58,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:58,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:58,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045738382] [2022-07-14 07:05:58,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045738382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:58,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:58,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:58,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774357088] [2022-07-14 07:05:58,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:58,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:58,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:58,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:58,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:58,446 INFO L87 Difference]: Start difference. First operand 865 states and 1169 transitions. Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:58,612 INFO L93 Difference]: Finished difference Result 933 states and 1246 transitions. [2022-07-14 07:05:58,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:58,612 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-14 07:05:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:58,614 INFO L225 Difference]: With dead ends: 933 [2022-07-14 07:05:58,614 INFO L226 Difference]: Without dead ends: 920 [2022-07-14 07:05:58,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:58,614 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 33 mSDsluCounter, 4201 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:58,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4747 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-07-14 07:05:58,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 874. [2022-07-14 07:05:58,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 734 states have (on average 1.3297002724795641) internal successors, (976), 751 states have internal predecessors, (976), 86 states have call successors, (86), 38 states have call predecessors, (86), 53 states have return successors, (120), 84 states have call predecessors, (120), 80 states have call successors, (120) [2022-07-14 07:05:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1182 transitions. [2022-07-14 07:05:58,622 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1182 transitions. Word has length 48 [2022-07-14 07:05:58,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:58,623 INFO L495 AbstractCegarLoop]: Abstraction has 874 states and 1182 transitions. [2022-07-14 07:05:58,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:58,623 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1182 transitions. [2022-07-14 07:05:58,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:05:58,624 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:58,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:58,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (55)] Ended with exit code 0 [2022-07-14 07:05:58,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:58,831 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:58,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash -642740247, now seen corresponding path program 1 times [2022-07-14 07:05:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:58,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035081144] [2022-07-14 07:05:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:58,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:58,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:58,833 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:58,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2022-07-14 07:05:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:58,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:58,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:58,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:58,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:58,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:58,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035081144] [2022-07-14 07:05:58,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035081144] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:58,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:58,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:58,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658698630] [2022-07-14 07:05:58,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:58,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:58,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:58,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:58,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:58,983 INFO L87 Difference]: Start difference. First operand 874 states and 1182 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:59,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:59,132 INFO L93 Difference]: Finished difference Result 889 states and 1197 transitions. [2022-07-14 07:05:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:59,132 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2022-07-14 07:05:59,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:59,134 INFO L225 Difference]: With dead ends: 889 [2022-07-14 07:05:59,134 INFO L226 Difference]: Without dead ends: 872 [2022-07-14 07:05:59,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:59,134 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 62 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4704 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:59,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4704 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2022-07-14 07:05:59,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 872. [2022-07-14 07:05:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 733 states have (on average 1.3287858117326057) internal successors, (974), 750 states have internal predecessors, (974), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-07-14 07:05:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1178 transitions. [2022-07-14 07:05:59,146 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1178 transitions. Word has length 51 [2022-07-14 07:05:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:59,146 INFO L495 AbstractCegarLoop]: Abstraction has 872 states and 1178 transitions. [2022-07-14 07:05:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:05:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1178 transitions. [2022-07-14 07:05:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 07:05:59,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:59,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:59,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:59,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:59,353 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:59,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1448836095, now seen corresponding path program 1 times [2022-07-14 07:05:59,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:59,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185994965] [2022-07-14 07:05:59,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:59,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:59,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:59,354 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:59,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2022-07-14 07:05:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:59,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:05:59,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:59,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:59,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:05:59,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185994965] [2022-07-14 07:05:59,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185994965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:59,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:59,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:59,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028454854] [2022-07-14 07:05:59,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:59,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:59,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:05:59,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:59,517 INFO L87 Difference]: Start difference. First operand 872 states and 1178 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:59,673 INFO L93 Difference]: Finished difference Result 889 states and 1196 transitions. [2022-07-14 07:05:59,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:59,673 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2022-07-14 07:05:59,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:59,675 INFO L225 Difference]: With dead ends: 889 [2022-07-14 07:05:59,675 INFO L226 Difference]: Without dead ends: 871 [2022-07-14 07:05:59,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:59,676 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 62 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4620 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:59,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4620 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:59,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-07-14 07:05:59,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2022-07-14 07:05:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 732 states have (on average 1.3210382513661203) internal successors, (967), 749 states have internal predecessors, (967), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-07-14 07:05:59,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1171 transitions. [2022-07-14 07:05:59,687 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1171 transitions. Word has length 49 [2022-07-14 07:05:59,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:59,687 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1171 transitions. [2022-07-14 07:05:59,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:59,687 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1171 transitions. [2022-07-14 07:05:59,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:59,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:59,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:59,696 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (57)] Ended with exit code 0 [2022-07-14 07:05:59,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:05:59,890 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:59,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:59,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1422191575, now seen corresponding path program 1 times [2022-07-14 07:05:59,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:05:59,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424937093] [2022-07-14 07:05:59,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:59,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:05:59,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:05:59,892 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:05:59,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Waiting until timeout for monitored process [2022-07-14 07:05:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:59,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:59,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:00,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:00,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:00,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424937093] [2022-07-14 07:06:00,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424937093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:00,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:00,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:06:00,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3317747] [2022-07-14 07:06:00,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:00,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:06:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:00,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:06:00,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:06:00,011 INFO L87 Difference]: Start difference. First operand 871 states and 1171 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:06:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:00,058 INFO L93 Difference]: Finished difference Result 892 states and 1194 transitions. [2022-07-14 07:06:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:06:00,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-14 07:06:00,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:00,060 INFO L225 Difference]: With dead ends: 892 [2022-07-14 07:06:00,060 INFO L226 Difference]: Without dead ends: 892 [2022-07-14 07:06:00,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:00,061 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 39 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:00,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1526 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:00,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2022-07-14 07:06:00,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 873. [2022-07-14 07:06:00,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 734 states have (on average 1.3201634877384196) internal successors, (969), 751 states have internal predecessors, (969), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-07-14 07:06:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1173 transitions. [2022-07-14 07:06:00,073 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1173 transitions. Word has length 48 [2022-07-14 07:06:00,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:00,073 INFO L495 AbstractCegarLoop]: Abstraction has 873 states and 1173 transitions. [2022-07-14 07:06:00,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:06:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1173 transitions. [2022-07-14 07:06:00,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:06:00,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:00,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:00,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (58)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:00,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:00,284 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1288178069, now seen corresponding path program 1 times [2022-07-14 07:06:00,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:00,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592871167] [2022-07-14 07:06:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:00,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:00,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:00,287 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:00,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2022-07-14 07:06:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:00,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:06:00,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:00,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:00,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:00,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592871167] [2022-07-14 07:06:00,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592871167] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:00,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:00,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:06:00,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150855717] [2022-07-14 07:06:00,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:00,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:06:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:00,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:06:00,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:00,426 INFO L87 Difference]: Start difference. First operand 873 states and 1173 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:06:00,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:00,510 INFO L93 Difference]: Finished difference Result 891 states and 1192 transitions. [2022-07-14 07:06:00,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:06:00,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-07-14 07:06:00,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:00,511 INFO L225 Difference]: With dead ends: 891 [2022-07-14 07:06:00,511 INFO L226 Difference]: Without dead ends: 870 [2022-07-14 07:06:00,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:06:00,512 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 60 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3064 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:00,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3064 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2022-07-14 07:06:00,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2022-07-14 07:06:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 731 states have (on average 1.3132694938440492) internal successors, (960), 748 states have internal predecessors, (960), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (119), 83 states have call predecessors, (119), 79 states have call successors, (119) [2022-07-14 07:06:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1164 transitions. [2022-07-14 07:06:00,520 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1164 transitions. Word has length 48 [2022-07-14 07:06:00,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:00,520 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1164 transitions. [2022-07-14 07:06:00,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:06:00,520 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1164 transitions. [2022-07-14 07:06:00,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:06:00,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:00,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:00,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:00,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:00,729 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:00,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:00,729 INFO L85 PathProgramCache]: Analyzing trace with hash 908630671, now seen corresponding path program 1 times [2022-07-14 07:06:00,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:00,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897286754] [2022-07-14 07:06:00,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:00,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:00,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:00,744 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:00,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2022-07-14 07:06:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:00,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:00,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:01,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:01,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:01,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897286754] [2022-07-14 07:06:01,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897286754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:01,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:01,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:01,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237800612] [2022-07-14 07:06:01,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:01,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:01,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:01,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:01,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:01,010 INFO L87 Difference]: Start difference. First operand 870 states and 1164 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:01,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:01,185 INFO L93 Difference]: Finished difference Result 909 states and 1203 transitions. [2022-07-14 07:06:01,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:01,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-07-14 07:06:01,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:01,187 INFO L225 Difference]: With dead ends: 909 [2022-07-14 07:06:01,188 INFO L226 Difference]: Without dead ends: 895 [2022-07-14 07:06:01,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:01,191 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 42 mSDsluCounter, 5071 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5595 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:01,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5595 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-07-14 07:06:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 870. [2022-07-14 07:06:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 731 states have (on average 1.3132694938440492) internal successors, (960), 748 states have internal predecessors, (960), 85 states have call successors, (85), 38 states have call predecessors, (85), 53 states have return successors, (118), 83 states have call predecessors, (118), 79 states have call successors, (118) [2022-07-14 07:06:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1163 transitions. [2022-07-14 07:06:01,200 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1163 transitions. Word has length 57 [2022-07-14 07:06:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:01,200 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1163 transitions. [2022-07-14 07:06:01,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1163 transitions. [2022-07-14 07:06:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 07:06:01,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:01,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:01,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (60)] Ended with exit code 0 [2022-07-14 07:06:01,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:01,404 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:01,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:01,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1327042800, now seen corresponding path program 1 times [2022-07-14 07:06:01,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:01,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61442235] [2022-07-14 07:06:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:01,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:01,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:01,405 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:01,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2022-07-14 07:06:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:01,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:06:01,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:01,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:01,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:01,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:01,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61442235] [2022-07-14 07:06:01,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61442235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:01,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:01,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:06:01,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379280051] [2022-07-14 07:06:01,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:01,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:06:01,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:01,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:06:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:06:01,590 INFO L87 Difference]: Start difference. First operand 870 states and 1163 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:01,755 INFO L93 Difference]: Finished difference Result 928 states and 1225 transitions. [2022-07-14 07:06:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:06:01,755 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-07-14 07:06:01,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:01,756 INFO L225 Difference]: With dead ends: 928 [2022-07-14 07:06:01,757 INFO L226 Difference]: Without dead ends: 913 [2022-07-14 07:06:01,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:06:01,757 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 33 mSDsluCounter, 4136 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 4675 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:01,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 4675 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:01,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-07-14 07:06:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 858. [2022-07-14 07:06:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.314404432132964) internal successors, (949), 738 states have internal predecessors, (949), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2022-07-14 07:06:01,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1144 transitions. [2022-07-14 07:06:01,765 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1144 transitions. Word has length 49 [2022-07-14 07:06:01,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:01,765 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1144 transitions. [2022-07-14 07:06:01,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:01,765 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1144 transitions. [2022-07-14 07:06:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:06:01,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:01,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:01,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2022-07-14 07:06:01,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:01,967 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:01,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1096222030, now seen corresponding path program 1 times [2022-07-14 07:06:01,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:01,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167883091] [2022-07-14 07:06:01,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:01,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:01,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:01,969 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:01,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2022-07-14 07:06:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:02,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:02,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:02,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:02,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:02,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167883091] [2022-07-14 07:06:02,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167883091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:02,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:02,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62547516] [2022-07-14 07:06:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:02,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:02,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:02,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:02,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:02,189 INFO L87 Difference]: Start difference. First operand 858 states and 1144 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:02,420 INFO L93 Difference]: Finished difference Result 927 states and 1221 transitions. [2022-07-14 07:06:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:02,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-07-14 07:06:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:02,422 INFO L225 Difference]: With dead ends: 927 [2022-07-14 07:06:02,422 INFO L226 Difference]: Without dead ends: 913 [2022-07-14 07:06:02,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:02,423 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 46 mSDsluCounter, 4591 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5123 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:02,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5123 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:06:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-07-14 07:06:02,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2022-07-14 07:06:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (116), 82 states have call predecessors, (116), 78 states have call successors, (116) [2022-07-14 07:06:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1156 transitions. [2022-07-14 07:06:02,430 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1156 transitions. Word has length 50 [2022-07-14 07:06:02,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:02,431 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1156 transitions. [2022-07-14 07:06:02,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:02,431 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1156 transitions. [2022-07-14 07:06:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 07:06:02,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:02,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:02,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2022-07-14 07:06:02,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:02,639 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:02,639 INFO L85 PathProgramCache]: Analyzing trace with hash -692563454, now seen corresponding path program 1 times [2022-07-14 07:06:02,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:02,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193589222] [2022-07-14 07:06:02,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:02,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:02,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:02,641 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:02,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Waiting until timeout for monitored process [2022-07-14 07:06:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:02,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:02,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:02,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:02,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:02,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193589222] [2022-07-14 07:06:02,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193589222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:02,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:02,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:02,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627410373] [2022-07-14 07:06:02,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:02,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:02,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:02,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:02,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:02,866 INFO L87 Difference]: Start difference. First operand 867 states and 1156 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:03,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:03,055 INFO L93 Difference]: Finished difference Result 927 states and 1220 transitions. [2022-07-14 07:06:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:03,056 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 49 [2022-07-14 07:06:03,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:03,057 INFO L225 Difference]: With dead ends: 927 [2022-07-14 07:06:03,057 INFO L226 Difference]: Without dead ends: 913 [2022-07-14 07:06:03,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:03,058 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 42 mSDsluCounter, 5101 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5631 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:03,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5631 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:03,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-07-14 07:06:03,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2022-07-14 07:06:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (115), 82 states have call predecessors, (115), 78 states have call successors, (115) [2022-07-14 07:06:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1155 transitions. [2022-07-14 07:06:03,066 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1155 transitions. Word has length 49 [2022-07-14 07:06:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:03,067 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1155 transitions. [2022-07-14 07:06:03,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1155 transitions. [2022-07-14 07:06:03,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 07:06:03,068 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:03,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:03,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (63)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:03,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:03,275 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:03,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:03,276 INFO L85 PathProgramCache]: Analyzing trace with hash 110672091, now seen corresponding path program 1 times [2022-07-14 07:06:03,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:03,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187890912] [2022-07-14 07:06:03,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:03,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:03,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:03,277 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:03,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2022-07-14 07:06:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:03,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:03,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:03,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:03,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:03,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187890912] [2022-07-14 07:06:03,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187890912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:03,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:03,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:03,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317453716] [2022-07-14 07:06:03,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:03,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:03,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:03,503 INFO L87 Difference]: Start difference. First operand 867 states and 1155 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:03,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:03,680 INFO L93 Difference]: Finished difference Result 927 states and 1219 transitions. [2022-07-14 07:06:03,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:03,681 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 59 [2022-07-14 07:06:03,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:03,683 INFO L225 Difference]: With dead ends: 927 [2022-07-14 07:06:03,683 INFO L226 Difference]: Without dead ends: 913 [2022-07-14 07:06:03,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:03,683 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 46 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:03,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5134 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:03,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-07-14 07:06:03,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 867. [2022-07-14 07:06:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 729 states have (on average 1.3113854595336076) internal successors, (956), 746 states have internal predecessors, (956), 84 states have call successors, (84), 38 states have call predecessors, (84), 53 states have return successors, (114), 82 states have call predecessors, (114), 78 states have call successors, (114) [2022-07-14 07:06:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1154 transitions. [2022-07-14 07:06:03,694 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1154 transitions. Word has length 59 [2022-07-14 07:06:03,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:03,694 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1154 transitions. [2022-07-14 07:06:03,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1154 transitions. [2022-07-14 07:06:03,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:03,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:03,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:03,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (64)] Ended with exit code 0 [2022-07-14 07:06:03,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:03,907 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:03,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1369472507, now seen corresponding path program 1 times [2022-07-14 07:06:03,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:03,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059223074] [2022-07-14 07:06:03,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:03,909 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:03,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:03,910 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:03,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2022-07-14 07:06:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:04,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:04,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:04,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:04,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:04,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059223074] [2022-07-14 07:06:04,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059223074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:04,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:04,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:04,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090983179] [2022-07-14 07:06:04,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:04,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:04,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:04,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:04,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:04,144 INFO L87 Difference]: Start difference. First operand 867 states and 1154 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:04,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:04,319 INFO L93 Difference]: Finished difference Result 927 states and 1218 transitions. [2022-07-14 07:06:04,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:04,319 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-07-14 07:06:04,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:04,321 INFO L225 Difference]: With dead ends: 927 [2022-07-14 07:06:04,321 INFO L226 Difference]: Without dead ends: 913 [2022-07-14 07:06:04,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:04,322 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 42 mSDsluCounter, 5139 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 5673 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:04,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 5673 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-07-14 07:06:04,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 858. [2022-07-14 07:06:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.314404432132964) internal successors, (949), 738 states have internal predecessors, (949), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2022-07-14 07:06:04,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1144 transitions. [2022-07-14 07:06:04,331 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1144 transitions. Word has length 56 [2022-07-14 07:06:04,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:04,331 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1144 transitions. [2022-07-14 07:06:04,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:04,331 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1144 transitions. [2022-07-14 07:06:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-14 07:06:04,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:04,333 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:04,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (65)] Ended with exit code 0 [2022-07-14 07:06:04,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:04,541 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:04,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:04,541 INFO L85 PathProgramCache]: Analyzing trace with hash 73346213, now seen corresponding path program 1 times [2022-07-14 07:06:04,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:04,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578756627] [2022-07-14 07:06:04,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:04,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:04,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:04,543 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:04,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Waiting until timeout for monitored process [2022-07-14 07:06:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:04,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:04,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:04,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:04,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:04,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578756627] [2022-07-14 07:06:04,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578756627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:04,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:04,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:06:04,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140012343] [2022-07-14 07:06:04,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:04,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:06:04,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:04,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:06:04,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:04,690 INFO L87 Difference]: Start difference. First operand 858 states and 1144 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:06:04,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:04,988 INFO L93 Difference]: Finished difference Result 858 states and 1138 transitions. [2022-07-14 07:06:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:06:04,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2022-07-14 07:06:04,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:04,990 INFO L225 Difference]: With dead ends: 858 [2022-07-14 07:06:04,990 INFO L226 Difference]: Without dead ends: 858 [2022-07-14 07:06:04,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:04,991 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 548 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:04,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1106 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:06:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2022-07-14 07:06:05,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2022-07-14 07:06:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.3060941828254848) internal successors, (943), 738 states have internal predecessors, (943), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2022-07-14 07:06:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1138 transitions. [2022-07-14 07:06:05,003 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1138 transitions. Word has length 66 [2022-07-14 07:06:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:05,004 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1138 transitions. [2022-07-14 07:06:05,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:06:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1138 transitions. [2022-07-14 07:06:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:05,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:05,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:05,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (66)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:05,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:05,212 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:05,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:05,213 INFO L85 PathProgramCache]: Analyzing trace with hash 707219433, now seen corresponding path program 1 times [2022-07-14 07:06:05,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:05,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540794184] [2022-07-14 07:06:05,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:05,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:05,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:05,214 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:05,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2022-07-14 07:06:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:05,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:05,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:05,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:05,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:05,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540794184] [2022-07-14 07:06:05,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540794184] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:05,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:05,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:06:05,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201041457] [2022-07-14 07:06:05,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:05,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:06:05,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:05,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:06:05,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:06:05,429 INFO L87 Difference]: Start difference. First operand 858 states and 1138 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:06:05,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:05,625 INFO L93 Difference]: Finished difference Result 858 states and 1130 transitions. [2022-07-14 07:06:05,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:06:05,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2022-07-14 07:06:05,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:05,627 INFO L225 Difference]: With dead ends: 858 [2022-07-14 07:06:05,627 INFO L226 Difference]: Without dead ends: 858 [2022-07-14 07:06:05,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:06:05,628 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 486 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:05,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 884 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:06:05,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2022-07-14 07:06:05,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2022-07-14 07:06:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 722 states have (on average 1.2950138504155124) internal successors, (935), 738 states have internal predecessors, (935), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 81 states have call predecessors, (111), 78 states have call successors, (111) [2022-07-14 07:06:05,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1130 transitions. [2022-07-14 07:06:05,635 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1130 transitions. Word has length 53 [2022-07-14 07:06:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:05,636 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1130 transitions. [2022-07-14 07:06:05,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:06:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1130 transitions. [2022-07-14 07:06:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:06:05,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:05,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:05,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:05,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:05,851 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:05,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:05,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1303785248, now seen corresponding path program 1 times [2022-07-14 07:06:05,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:05,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185135177] [2022-07-14 07:06:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:05,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:05,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:05,852 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:05,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2022-07-14 07:06:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:05,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:05,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:05,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:05,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:05,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185135177] [2022-07-14 07:06:05,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185135177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:05,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:05,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:06:05,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275939436] [2022-07-14 07:06:05,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:05,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:06:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:05,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:06:05,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:05,979 INFO L87 Difference]: Start difference. First operand 858 states and 1130 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:06,004 INFO L93 Difference]: Finished difference Result 878 states and 1152 transitions. [2022-07-14 07:06:06,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:06:06,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-07-14 07:06:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:06,007 INFO L225 Difference]: With dead ends: 878 [2022-07-14 07:06:06,007 INFO L226 Difference]: Without dead ends: 878 [2022-07-14 07:06:06,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:06,008 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 33 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:06,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2084 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2022-07-14 07:06:06,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 860. [2022-07-14 07:06:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 724 states have (on average 1.2941988950276244) internal successors, (937), 739 states have internal predecessors, (937), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 82 states have call predecessors, (111), 78 states have call successors, (111) [2022-07-14 07:06:06,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1132 transitions. [2022-07-14 07:06:06,020 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1132 transitions. Word has length 51 [2022-07-14 07:06:06,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:06,020 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1132 transitions. [2022-07-14 07:06:06,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1132 transitions. [2022-07-14 07:06:06,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:06:06,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:06,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:06,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:06,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:06,228 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:06,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1797533827, now seen corresponding path program 1 times [2022-07-14 07:06:06,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:06,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377868816] [2022-07-14 07:06:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:06,229 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:06,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:06,231 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:06,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2022-07-14 07:06:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:06,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:06,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:06,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:06,353 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:06,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:06,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377868816] [2022-07-14 07:06:06,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377868816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:06,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:06,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:06:06,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118687856] [2022-07-14 07:06:06,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:06,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:06:06,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:06,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:06:06,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:06,354 INFO L87 Difference]: Start difference. First operand 860 states and 1132 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:06,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:06,409 INFO L93 Difference]: Finished difference Result 925 states and 1208 transitions. [2022-07-14 07:06:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:06:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2022-07-14 07:06:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:06,411 INFO L225 Difference]: With dead ends: 925 [2022-07-14 07:06:06,411 INFO L226 Difference]: Without dead ends: 925 [2022-07-14 07:06:06,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:06,411 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 141 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:06,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 2010 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:06,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-07-14 07:06:06,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 866. [2022-07-14 07:06:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 729 states have (on average 1.2935528120713307) internal successors, (943), 744 states have internal predecessors, (943), 85 states have call successors, (85), 38 states have call predecessors, (85), 51 states have return successors, (112), 83 states have call predecessors, (112), 79 states have call successors, (112) [2022-07-14 07:06:06,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1140 transitions. [2022-07-14 07:06:06,421 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1140 transitions. Word has length 50 [2022-07-14 07:06:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:06,421 INFO L495 AbstractCegarLoop]: Abstraction has 866 states and 1140 transitions. [2022-07-14 07:06:06,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1140 transitions. [2022-07-14 07:06:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:06:06,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:06,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:06,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (69)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:06,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:06,632 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:06,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash -299447701, now seen corresponding path program 1 times [2022-07-14 07:06:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:06,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49795170] [2022-07-14 07:06:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:06,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:06,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:06,634 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:06,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Waiting until timeout for monitored process [2022-07-14 07:06:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:06,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:06,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:06,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:06,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:06,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49795170] [2022-07-14 07:06:06,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49795170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:06,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:06,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:06,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2203445] [2022-07-14 07:06:06,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:06,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:06,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:06,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:06,835 INFO L87 Difference]: Start difference. First operand 866 states and 1140 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:07,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:07,023 INFO L93 Difference]: Finished difference Result 918 states and 1192 transitions. [2022-07-14 07:06:07,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:07,023 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2022-07-14 07:06:07,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:07,025 INFO L225 Difference]: With dead ends: 918 [2022-07-14 07:06:07,025 INFO L226 Difference]: Without dead ends: 903 [2022-07-14 07:06:07,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:07,025 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 46 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5113 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:07,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5113 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-07-14 07:06:07,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 863. [2022-07-14 07:06:07,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 727 states have (on average 1.2916093535075652) internal successors, (939), 742 states have internal predecessors, (939), 84 states have call successors, (84), 38 states have call predecessors, (84), 51 states have return successors, (111), 82 states have call predecessors, (111), 78 states have call successors, (111) [2022-07-14 07:06:07,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1134 transitions. [2022-07-14 07:06:07,033 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1134 transitions. Word has length 51 [2022-07-14 07:06:07,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:07,033 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1134 transitions. [2022-07-14 07:06:07,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1134 transitions. [2022-07-14 07:06:07,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:06:07,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:07,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:07,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (70)] Ended with exit code 0 [2022-07-14 07:06:07,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:07,242 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:07,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1170886567, now seen corresponding path program 1 times [2022-07-14 07:06:07,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:07,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77831635] [2022-07-14 07:06:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:07,243 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:07,244 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:07,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2022-07-14 07:06:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:07,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:07,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:07,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:07,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:07,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77831635] [2022-07-14 07:06:07,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77831635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:07,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:07,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554444804] [2022-07-14 07:06:07,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:07,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:07,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:07,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:07,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:07,448 INFO L87 Difference]: Start difference. First operand 863 states and 1134 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:07,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:07,609 INFO L93 Difference]: Finished difference Result 915 states and 1186 transitions. [2022-07-14 07:06:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-07-14 07:06:07,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:07,611 INFO L225 Difference]: With dead ends: 915 [2022-07-14 07:06:07,611 INFO L226 Difference]: Without dead ends: 898 [2022-07-14 07:06:07,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:07,612 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 46 mSDsluCounter, 4486 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:07,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 5001 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:07,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-07-14 07:06:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 858. [2022-07-14 07:06:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 723 states have (on average 1.2904564315352698) internal successors, (933), 738 states have internal predecessors, (933), 83 states have call successors, (83), 38 states have call predecessors, (83), 51 states have return successors, (110), 81 states have call predecessors, (110), 77 states have call successors, (110) [2022-07-14 07:06:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1126 transitions. [2022-07-14 07:06:07,620 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1126 transitions. Word has length 50 [2022-07-14 07:06:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:07,620 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1126 transitions. [2022-07-14 07:06:07,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1126 transitions. [2022-07-14 07:06:07,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:06:07,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:07,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:07,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:07,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:07,829 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:07,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1007488154, now seen corresponding path program 1 times [2022-07-14 07:06:07,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:07,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119904378] [2022-07-14 07:06:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:07,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:07,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:07,831 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:07,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Waiting until timeout for monitored process [2022-07-14 07:06:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:07,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:07,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:07,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:07,958 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:07,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119904378] [2022-07-14 07:06:07,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119904378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:07,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:07,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:07,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110491045] [2022-07-14 07:06:07,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:07,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:07,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:07,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:07,960 INFO L87 Difference]: Start difference. First operand 858 states and 1126 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:08,040 INFO L93 Difference]: Finished difference Result 874 states and 1140 transitions. [2022-07-14 07:06:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:08,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-14 07:06:08,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:08,042 INFO L225 Difference]: With dead ends: 874 [2022-07-14 07:06:08,042 INFO L226 Difference]: Without dead ends: 874 [2022-07-14 07:06:08,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:08,042 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 41 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:08,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2471 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:08,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-07-14 07:06:08,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 858. [2022-07-14 07:06:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 723 states have (on average 1.2863070539419088) internal successors, (930), 738 states have internal predecessors, (930), 83 states have call successors, (83), 38 states have call predecessors, (83), 51 states have return successors, (110), 81 states have call predecessors, (110), 77 states have call successors, (110) [2022-07-14 07:06:08,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1123 transitions. [2022-07-14 07:06:08,050 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1123 transitions. Word has length 51 [2022-07-14 07:06:08,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:08,050 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1123 transitions. [2022-07-14 07:06:08,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1123 transitions. [2022-07-14 07:06:08,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:06:08,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:08,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:08,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (72)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:08,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:08,259 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:08,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:08,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1141501660, now seen corresponding path program 1 times [2022-07-14 07:06:08,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:08,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709515228] [2022-07-14 07:06:08,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:08,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:08,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:08,260 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:08,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2022-07-14 07:06:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:08,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:06:08,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:08,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:08,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:08,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709515228] [2022-07-14 07:06:08,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709515228] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:08,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:08,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:06:08,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938448371] [2022-07-14 07:06:08,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:08,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:06:08,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:08,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:06:08,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:06:08,423 INFO L87 Difference]: Start difference. First operand 858 states and 1123 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:08,539 INFO L93 Difference]: Finished difference Result 873 states and 1138 transitions. [2022-07-14 07:06:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:06:08,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2022-07-14 07:06:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:08,541 INFO L225 Difference]: With dead ends: 873 [2022-07-14 07:06:08,541 INFO L226 Difference]: Without dead ends: 854 [2022-07-14 07:06:08,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:06:08,541 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 62 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3923 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:08,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3923 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-07-14 07:06:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 848. [2022-07-14 07:06:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 715 states have (on average 1.288111888111888) internal successors, (921), 730 states have internal predecessors, (921), 81 states have call successors, (81), 38 states have call predecessors, (81), 51 states have return successors, (108), 79 states have call predecessors, (108), 75 states have call successors, (108) [2022-07-14 07:06:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1110 transitions. [2022-07-14 07:06:08,549 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1110 transitions. Word has length 51 [2022-07-14 07:06:08,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:08,549 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1110 transitions. [2022-07-14 07:06:08,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1110 transitions. [2022-07-14 07:06:08,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 07:06:08,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:08,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:08,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (73)] Ended with exit code 0 [2022-07-14 07:06:08,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:08,750 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash 121557198, now seen corresponding path program 1 times [2022-07-14 07:06:08,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:08,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440670772] [2022-07-14 07:06:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:08,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:08,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:08,752 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:08,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2022-07-14 07:06:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:08,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:08,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:08,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:08,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:08,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440670772] [2022-07-14 07:06:08,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440670772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:08,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:08,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:06:08,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198435342] [2022-07-14 07:06:08,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:08,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:06:08,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:08,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:06:08,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:06:08,917 INFO L87 Difference]: Start difference. First operand 848 states and 1110 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:06:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:09,087 INFO L93 Difference]: Finished difference Result 872 states and 1136 transitions. [2022-07-14 07:06:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:06:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2022-07-14 07:06:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:09,089 INFO L225 Difference]: With dead ends: 872 [2022-07-14 07:06:09,089 INFO L226 Difference]: Without dead ends: 871 [2022-07-14 07:06:09,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:06:09,089 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 551 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:09,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 886 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:06:09,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-07-14 07:06:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 833. [2022-07-14 07:06:09,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 702 states have (on average 1.2849002849002849) internal successors, (902), 717 states have internal predecessors, (902), 81 states have call successors, (81), 38 states have call predecessors, (81), 49 states have return successors, (106), 77 states have call predecessors, (106), 75 states have call successors, (106) [2022-07-14 07:06:09,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1089 transitions. [2022-07-14 07:06:09,096 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1089 transitions. Word has length 55 [2022-07-14 07:06:09,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:09,096 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1089 transitions. [2022-07-14 07:06:09,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:06:09,096 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1089 transitions. [2022-07-14 07:06:09,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:06:09,097 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:09,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:09,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (74)] Ended with exit code 0 [2022-07-14 07:06:09,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,298 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:09,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:09,298 INFO L85 PathProgramCache]: Analyzing trace with hash 445712646, now seen corresponding path program 1 times [2022-07-14 07:06:09,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:09,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356065745] [2022-07-14 07:06:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:09,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:09,300 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:09,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Waiting until timeout for monitored process [2022-07-14 07:06:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:09,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:09,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:09,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:09,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:09,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356065745] [2022-07-14 07:06:09,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356065745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:09,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:09,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:06:09,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426181824] [2022-07-14 07:06:09,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:09,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:06:09,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:09,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:06:09,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:09,418 INFO L87 Difference]: Start difference. First operand 833 states and 1089 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:09,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:09,481 INFO L93 Difference]: Finished difference Result 854 states and 1112 transitions. [2022-07-14 07:06:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:06:09,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-07-14 07:06:09,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:09,482 INFO L225 Difference]: With dead ends: 854 [2022-07-14 07:06:09,482 INFO L226 Difference]: Without dead ends: 854 [2022-07-14 07:06:09,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:09,483 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 23 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1979 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:09,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1979 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-07-14 07:06:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 833. [2022-07-14 07:06:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 702 states have (on average 1.2834757834757835) internal successors, (901), 717 states have internal predecessors, (901), 81 states have call successors, (81), 38 states have call predecessors, (81), 49 states have return successors, (106), 77 states have call predecessors, (106), 75 states have call successors, (106) [2022-07-14 07:06:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1088 transitions. [2022-07-14 07:06:09,496 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1088 transitions. Word has length 52 [2022-07-14 07:06:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:09,497 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1088 transitions. [2022-07-14 07:06:09,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:09,497 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1088 transitions. [2022-07-14 07:06:09,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-14 07:06:09,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:09,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:09,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (75)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:09,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,707 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:09,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:09,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1620180035, now seen corresponding path program 1 times [2022-07-14 07:06:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:09,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391140159] [2022-07-14 07:06:09,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:09,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:09,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:09,709 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:09,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2022-07-14 07:06:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:09,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:09,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:09,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:09,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:09,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391140159] [2022-07-14 07:06:09,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391140159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:09,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:09,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:09,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762945240] [2022-07-14 07:06:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:09,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:09,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:09,841 INFO L87 Difference]: Start difference. First operand 833 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:06:09,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:09,850 INFO L93 Difference]: Finished difference Result 912 states and 1189 transitions. [2022-07-14 07:06:09,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:09,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2022-07-14 07:06:09,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:09,852 INFO L225 Difference]: With dead ends: 912 [2022-07-14 07:06:09,852 INFO L226 Difference]: Without dead ends: 912 [2022-07-14 07:06:09,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:09,852 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 101 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:09,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1018 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:09,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-07-14 07:06:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 879. [2022-07-14 07:06:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 741 states have (on average 1.2820512820512822) internal successors, (950), 757 states have internal predecessors, (950), 82 states have call successors, (82), 40 states have call predecessors, (82), 55 states have return successors, (112), 81 states have call predecessors, (112), 77 states have call successors, (112) [2022-07-14 07:06:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1144 transitions. [2022-07-14 07:06:09,860 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1144 transitions. Word has length 70 [2022-07-14 07:06:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:09,860 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1144 transitions. [2022-07-14 07:06:09,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:06:09,860 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1144 transitions. [2022-07-14 07:06:09,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:09,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:09,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:09,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (76)] Ended with exit code 0 [2022-07-14 07:06:10,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,062 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:10,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1308862555, now seen corresponding path program 1 times [2022-07-14 07:06:10,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:10,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725776469] [2022-07-14 07:06:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:10,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:10,063 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:10,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2022-07-14 07:06:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:10,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:06:10,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:10,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:10,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:10,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725776469] [2022-07-14 07:06:10,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725776469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:10,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:10,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:06:10,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753583241] [2022-07-14 07:06:10,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:10,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:06:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:10,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:06:10,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:06:10,176 INFO L87 Difference]: Start difference. First operand 879 states and 1144 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:10,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:10,209 INFO L93 Difference]: Finished difference Result 900 states and 1167 transitions. [2022-07-14 07:06:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:06:10,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:06:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:10,211 INFO L225 Difference]: With dead ends: 900 [2022-07-14 07:06:10,211 INFO L226 Difference]: Without dead ends: 900 [2022-07-14 07:06:10,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:10,211 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 39 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:10,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1459 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:10,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-07-14 07:06:10,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 881. [2022-07-14 07:06:10,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 743 states have (on average 1.2812920592193808) internal successors, (952), 759 states have internal predecessors, (952), 82 states have call successors, (82), 40 states have call predecessors, (82), 55 states have return successors, (112), 81 states have call predecessors, (112), 77 states have call successors, (112) [2022-07-14 07:06:10,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1146 transitions. [2022-07-14 07:06:10,223 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1146 transitions. Word has length 53 [2022-07-14 07:06:10,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:10,223 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1146 transitions. [2022-07-14 07:06:10,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1146 transitions. [2022-07-14 07:06:10,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:10,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:10,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:10,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (77)] Ended with exit code 0 [2022-07-14 07:06:10,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,431 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:10,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:10,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1442876061, now seen corresponding path program 1 times [2022-07-14 07:06:10,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:10,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904176943] [2022-07-14 07:06:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:10,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:10,433 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:10,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (78)] Waiting until timeout for monitored process [2022-07-14 07:06:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:10,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 07:06:10,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:10,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:10,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:10,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904176943] [2022-07-14 07:06:10,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904176943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:10,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:10,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:06:10,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969154837] [2022-07-14 07:06:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:10,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:06:10,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:10,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:06:10,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:10,558 INFO L87 Difference]: Start difference. First operand 881 states and 1146 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:10,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:10,646 INFO L93 Difference]: Finished difference Result 899 states and 1165 transitions. [2022-07-14 07:06:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:06:10,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:06:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:10,648 INFO L225 Difference]: With dead ends: 899 [2022-07-14 07:06:10,648 INFO L226 Difference]: Without dead ends: 879 [2022-07-14 07:06:10,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:06:10,649 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 60 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:10,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 2918 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-07-14 07:06:10,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 877. [2022-07-14 07:06:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 739 states have (on average 1.2814614343707713) internal successors, (947), 756 states have internal predecessors, (947), 82 states have call successors, (82), 40 states have call predecessors, (82), 55 states have return successors, (112), 80 states have call predecessors, (112), 77 states have call successors, (112) [2022-07-14 07:06:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1141 transitions. [2022-07-14 07:06:10,657 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1141 transitions. Word has length 53 [2022-07-14 07:06:10,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:10,658 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1141 transitions. [2022-07-14 07:06:10,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1141 transitions. [2022-07-14 07:06:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:10,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:10,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:10,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (78)] Ended with exit code 0 [2022-07-14 07:06:10,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,860 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:10,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:10,860 INFO L85 PathProgramCache]: Analyzing trace with hash 820450658, now seen corresponding path program 1 times [2022-07-14 07:06:10,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:10,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023436401] [2022-07-14 07:06:10,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:10,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:10,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:10,862 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:10,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2022-07-14 07:06:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:10,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:10,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:10,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:10,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:10,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023436401] [2022-07-14 07:06:10,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023436401] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:10,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:10,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:10,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356944314] [2022-07-14 07:06:10,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:10,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:10,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:10,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:10,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:10,994 INFO L87 Difference]: Start difference. First operand 877 states and 1141 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:11,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:11,076 INFO L93 Difference]: Finished difference Result 898 states and 1164 transitions. [2022-07-14 07:06:11,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:11,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:06:11,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:11,077 INFO L225 Difference]: With dead ends: 898 [2022-07-14 07:06:11,077 INFO L226 Difference]: Without dead ends: 898 [2022-07-14 07:06:11,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:11,078 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 45 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:11,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2446 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-07-14 07:06:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 877. [2022-07-14 07:06:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 739 states have (on average 1.2801082543978348) internal successors, (946), 756 states have internal predecessors, (946), 82 states have call successors, (82), 40 states have call predecessors, (82), 55 states have return successors, (112), 80 states have call predecessors, (112), 77 states have call successors, (112) [2022-07-14 07:06:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1140 transitions. [2022-07-14 07:06:11,087 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1140 transitions. Word has length 53 [2022-07-14 07:06:11,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:11,087 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1140 transitions. [2022-07-14 07:06:11,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1140 transitions. [2022-07-14 07:06:11,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:11,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:11,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:11,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:11,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:11,299 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:11,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:11,299 INFO L85 PathProgramCache]: Analyzing trace with hash 882490272, now seen corresponding path program 1 times [2022-07-14 07:06:11,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:11,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430285830] [2022-07-14 07:06:11,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:11,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:11,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:11,301 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:11,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (80)] Waiting until timeout for monitored process [2022-07-14 07:06:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:11,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:11,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:11,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:11,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:11,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430285830] [2022-07-14 07:06:11,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430285830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:11,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:11,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:11,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951311015] [2022-07-14 07:06:11,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:11,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:11,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:11,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:11,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:11,416 INFO L87 Difference]: Start difference. First operand 877 states and 1140 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:11,485 INFO L93 Difference]: Finished difference Result 898 states and 1163 transitions. [2022-07-14 07:06:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:06:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:11,487 INFO L225 Difference]: With dead ends: 898 [2022-07-14 07:06:11,487 INFO L226 Difference]: Without dead ends: 898 [2022-07-14 07:06:11,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:11,487 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 39 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:11,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2444 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-07-14 07:06:11,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 879. [2022-07-14 07:06:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 741 states have (on average 1.2793522267206479) internal successors, (948), 758 states have internal predecessors, (948), 82 states have call successors, (82), 40 states have call predecessors, (82), 55 states have return successors, (112), 80 states have call predecessors, (112), 77 states have call successors, (112) [2022-07-14 07:06:11,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1142 transitions. [2022-07-14 07:06:11,494 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1142 transitions. Word has length 53 [2022-07-14 07:06:11,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:11,494 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1142 transitions. [2022-07-14 07:06:11,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:11,494 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1142 transitions. [2022-07-14 07:06:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:11,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:11,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:11,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (80)] Ended with exit code 0 [2022-07-14 07:06:11,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:11,695 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 748476766, now seen corresponding path program 1 times [2022-07-14 07:06:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:11,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349041543] [2022-07-14 07:06:11,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:11,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:11,697 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:11,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (81)] Waiting until timeout for monitored process [2022-07-14 07:06:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:11,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:06:11,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:11,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:11,844 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:11,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349041543] [2022-07-14 07:06:11,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349041543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:11,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:11,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:06:11,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503954543] [2022-07-14 07:06:11,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:11,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:06:11,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:11,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:06:11,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:06:11,845 INFO L87 Difference]: Start difference. First operand 879 states and 1142 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:11,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:11,966 INFO L93 Difference]: Finished difference Result 897 states and 1161 transitions. [2022-07-14 07:06:11,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:06:11,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:06:11,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:11,967 INFO L225 Difference]: With dead ends: 897 [2022-07-14 07:06:11,968 INFO L226 Difference]: Without dead ends: 871 [2022-07-14 07:06:11,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:06:11,968 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 60 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3875 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:11,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3875 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:11,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-07-14 07:06:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2022-07-14 07:06:11,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 734 states have (on average 1.279291553133515) internal successors, (939), 751 states have internal predecessors, (939), 81 states have call successors, (81), 40 states have call predecessors, (81), 55 states have return successors, (111), 79 states have call predecessors, (111), 76 states have call successors, (111) [2022-07-14 07:06:11,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1131 transitions. [2022-07-14 07:06:11,975 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1131 transitions. Word has length 53 [2022-07-14 07:06:11,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:11,975 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1131 transitions. [2022-07-14 07:06:11,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1131 transitions. [2022-07-14 07:06:11,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:11,976 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:11,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:11,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (81)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:12,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:12,181 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:12,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:12,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1994228703, now seen corresponding path program 1 times [2022-07-14 07:06:12,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:12,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819305325] [2022-07-14 07:06:12,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:12,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:12,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:12,183 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:12,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2022-07-14 07:06:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:12,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:12,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:12,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:12,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:12,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819305325] [2022-07-14 07:06:12,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819305325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:12,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:12,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:12,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424024138] [2022-07-14 07:06:12,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:12,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:12,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:12,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:12,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:12,297 INFO L87 Difference]: Start difference. First operand 871 states and 1131 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:12,352 INFO L93 Difference]: Finished difference Result 880 states and 1135 transitions. [2022-07-14 07:06:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:06:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:12,353 INFO L225 Difference]: With dead ends: 880 [2022-07-14 07:06:12,353 INFO L226 Difference]: Without dead ends: 880 [2022-07-14 07:06:12,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:12,353 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 39 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:12,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2330 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-07-14 07:06:12,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 864. [2022-07-14 07:06:12,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 729 states have (on average 1.2757201646090535) internal successors, (930), 746 states have internal predecessors, (930), 79 states have call successors, (79), 40 states have call predecessors, (79), 55 states have return successors, (109), 77 states have call predecessors, (109), 74 states have call successors, (109) [2022-07-14 07:06:12,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1118 transitions. [2022-07-14 07:06:12,367 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1118 transitions. Word has length 53 [2022-07-14 07:06:12,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:12,368 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1118 transitions. [2022-07-14 07:06:12,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:12,368 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1118 transitions. [2022-07-14 07:06:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:12,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:12,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:12,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (82)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:12,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:12,569 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:12,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1860215197, now seen corresponding path program 1 times [2022-07-14 07:06:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:12,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245915068] [2022-07-14 07:06:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:12,570 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:12,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:12,571 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:12,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (83)] Waiting until timeout for monitored process [2022-07-14 07:06:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:12,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:06:12,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:12,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:12,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:12,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:12,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245915068] [2022-07-14 07:06:12,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245915068] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:12,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:12,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:06:12,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773648883] [2022-07-14 07:06:12,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:12,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:06:12,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:12,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:06:12,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:06:12,721 INFO L87 Difference]: Start difference. First operand 864 states and 1118 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:12,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:12,835 INFO L93 Difference]: Finished difference Result 879 states and 1133 transitions. [2022-07-14 07:06:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:06:12,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2022-07-14 07:06:12,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:12,836 INFO L225 Difference]: With dead ends: 879 [2022-07-14 07:06:12,836 INFO L226 Difference]: Without dead ends: 854 [2022-07-14 07:06:12,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:06:12,837 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 60 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:12,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3688 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:12,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-07-14 07:06:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2022-07-14 07:06:12,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 721 states have (on average 1.2760055478502081) internal successors, (920), 738 states have internal predecessors, (920), 77 states have call successors, (77), 40 states have call predecessors, (77), 55 states have return successors, (106), 75 states have call predecessors, (106), 72 states have call successors, (106) [2022-07-14 07:06:12,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1103 transitions. [2022-07-14 07:06:12,843 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1103 transitions. Word has length 53 [2022-07-14 07:06:12,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:12,843 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1103 transitions. [2022-07-14 07:06:12,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:12,844 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1103 transitions. [2022-07-14 07:06:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:06:12,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:12,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:12,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (83)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:13,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:13,052 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:13,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:13,052 INFO L85 PathProgramCache]: Analyzing trace with hash 953754427, now seen corresponding path program 1 times [2022-07-14 07:06:13,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:13,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813301450] [2022-07-14 07:06:13,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:13,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:13,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:13,054 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:13,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (84)] Waiting until timeout for monitored process [2022-07-14 07:06:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:13,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:13,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:13,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:13,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:13,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:13,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813301450] [2022-07-14 07:06:13,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813301450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:13,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:13,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:06:13,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159685907] [2022-07-14 07:06:13,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:13,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:06:13,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:13,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:06:13,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:13,249 INFO L87 Difference]: Start difference. First operand 854 states and 1103 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:13,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:13,394 INFO L93 Difference]: Finished difference Result 863 states and 1110 transitions. [2022-07-14 07:06:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:06:13,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2022-07-14 07:06:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:13,396 INFO L225 Difference]: With dead ends: 863 [2022-07-14 07:06:13,396 INFO L226 Difference]: Without dead ends: 863 [2022-07-14 07:06:13,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:13,396 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 477 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:13,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 792 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:13,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2022-07-14 07:06:13,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 854. [2022-07-14 07:06:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 721 states have (on average 1.273231622746186) internal successors, (918), 738 states have internal predecessors, (918), 77 states have call successors, (77), 40 states have call predecessors, (77), 55 states have return successors, (106), 75 states have call predecessors, (106), 72 states have call successors, (106) [2022-07-14 07:06:13,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1101 transitions. [2022-07-14 07:06:13,403 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1101 transitions. Word has length 53 [2022-07-14 07:06:13,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:13,403 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1101 transitions. [2022-07-14 07:06:13,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1101 transitions. [2022-07-14 07:06:13,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 07:06:13,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:13,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:13,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (84)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:13,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:13,611 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:13,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1335081080, now seen corresponding path program 1 times [2022-07-14 07:06:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:13,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798244219] [2022-07-14 07:06:13,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:13,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:13,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:13,613 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:13,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2022-07-14 07:06:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:13,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:13,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:13,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:13,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:13,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:13,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798244219] [2022-07-14 07:06:13,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798244219] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:13,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:13,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361047922] [2022-07-14 07:06:13,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:13,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:13,795 INFO L87 Difference]: Start difference. First operand 854 states and 1101 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-14 07:06:13,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:13,974 INFO L93 Difference]: Finished difference Result 868 states and 1113 transitions. [2022-07-14 07:06:13,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:13,975 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 59 [2022-07-14 07:06:13,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:13,976 INFO L225 Difference]: With dead ends: 868 [2022-07-14 07:06:13,976 INFO L226 Difference]: Without dead ends: 844 [2022-07-14 07:06:13,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:06:13,976 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 62 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:13,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4879 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:13,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-07-14 07:06:13,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2022-07-14 07:06:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 713 states have (on average 1.2720897615708275) internal successors, (907), 731 states have internal predecessors, (907), 75 states have call successors, (75), 40 states have call predecessors, (75), 55 states have return successors, (101), 72 states have call predecessors, (101), 70 states have call successors, (101) [2022-07-14 07:06:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1083 transitions. [2022-07-14 07:06:13,983 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1083 transitions. Word has length 59 [2022-07-14 07:06:13,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:13,983 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1083 transitions. [2022-07-14 07:06:13,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-14 07:06:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1083 transitions. [2022-07-14 07:06:13,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 07:06:13,984 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:13,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:13,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2022-07-14 07:06:14,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:14,185 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:14,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash -507761203, now seen corresponding path program 1 times [2022-07-14 07:06:14,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:14,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82884788] [2022-07-14 07:06:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:14,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:14,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:14,188 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:14,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (86)] Waiting until timeout for monitored process [2022-07-14 07:06:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:14,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 07:06:14,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:14,364 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:14,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:14,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82884788] [2022-07-14 07:06:14,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82884788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:14,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:14,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:06:14,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025275152] [2022-07-14 07:06:14,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:14,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:06:14,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:06:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:06:14,365 INFO L87 Difference]: Start difference. First operand 844 states and 1083 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:14,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:14,497 INFO L93 Difference]: Finished difference Result 861 states and 1101 transitions. [2022-07-14 07:06:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:06:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2022-07-14 07:06:14,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:14,499 INFO L225 Difference]: With dead ends: 861 [2022-07-14 07:06:14,499 INFO L226 Difference]: Without dead ends: 840 [2022-07-14 07:06:14,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:14,504 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 62 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:14,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3869 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:14,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-07-14 07:06:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 834. [2022-07-14 07:06:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 707 states have (on average 1.27015558698727) internal successors, (898), 723 states have internal predecessors, (898), 73 states have call successors, (73), 40 states have call predecessors, (73), 53 states have return successors, (91), 70 states have call predecessors, (91), 68 states have call successors, (91) [2022-07-14 07:06:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1062 transitions. [2022-07-14 07:06:14,513 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1062 transitions. Word has length 55 [2022-07-14 07:06:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:14,513 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1062 transitions. [2022-07-14 07:06:14,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1062 transitions. [2022-07-14 07:06:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 07:06:14,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:14,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:14,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (86)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:14,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:14,725 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:14,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1347488490, now seen corresponding path program 1 times [2022-07-14 07:06:14,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:14,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898439231] [2022-07-14 07:06:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:14,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:14,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:14,728 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:14,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (87)] Waiting until timeout for monitored process [2022-07-14 07:06:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:14,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:14,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:14,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:14,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:14,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898439231] [2022-07-14 07:06:14,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898439231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:14,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:14,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:14,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640088134] [2022-07-14 07:06:14,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:14,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:14,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:14,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:14,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:14,901 INFO L87 Difference]: Start difference. First operand 834 states and 1062 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,059 INFO L93 Difference]: Finished difference Result 851 states and 1080 transitions. [2022-07-14 07:06:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:15,059 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2022-07-14 07:06:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,061 INFO L225 Difference]: With dead ends: 851 [2022-07-14 07:06:15,061 INFO L226 Difference]: Without dead ends: 831 [2022-07-14 07:06:15,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:06:15,061 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 62 mSDsluCounter, 4306 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4750 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4750 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:15,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2022-07-14 07:06:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 831. [2022-07-14 07:06:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 705 states have (on average 1.2680851063829788) internal successors, (894), 721 states have internal predecessors, (894), 72 states have call successors, (72), 40 states have call predecessors, (72), 53 states have return successors, (90), 69 states have call predecessors, (90), 67 states have call successors, (90) [2022-07-14 07:06:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1056 transitions. [2022-07-14 07:06:15,070 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1056 transitions. Word has length 55 [2022-07-14 07:06:15,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,070 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1056 transitions. [2022-07-14 07:06:15,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1056 transitions. [2022-07-14 07:06:15,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:06:15,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:15,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (87)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:15,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:15,272 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2057071680, now seen corresponding path program 1 times [2022-07-14 07:06:15,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:15,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810156652] [2022-07-14 07:06:15,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:15,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:15,274 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:15,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2022-07-14 07:06:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:15,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:15,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:15,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:15,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810156652] [2022-07-14 07:06:15,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810156652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:06:15,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134735997] [2022-07-14 07:06:15,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:06:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:06:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:15,400 INFO L87 Difference]: Start difference. First operand 831 states and 1056 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,456 INFO L93 Difference]: Finished difference Result 852 states and 1079 transitions. [2022-07-14 07:06:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:06:15,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:06:15,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,458 INFO L225 Difference]: With dead ends: 852 [2022-07-14 07:06:15,458 INFO L226 Difference]: Without dead ends: 852 [2022-07-14 07:06:15,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:15,458 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 22 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1747 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-07-14 07:06:15,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 831. [2022-07-14 07:06:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 705 states have (on average 1.2666666666666666) internal successors, (893), 721 states have internal predecessors, (893), 72 states have call successors, (72), 40 states have call predecessors, (72), 53 states have return successors, (90), 69 states have call predecessors, (90), 67 states have call successors, (90) [2022-07-14 07:06:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1055 transitions. [2022-07-14 07:06:15,464 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1055 transitions. Word has length 54 [2022-07-14 07:06:15,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,465 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1055 transitions. [2022-07-14 07:06:15,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1055 transitions. [2022-07-14 07:06:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:06:15,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:15,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (88)] Ended with exit code 0 [2022-07-14 07:06:15,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:15,666 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:15,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:15,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2119111294, now seen corresponding path program 1 times [2022-07-14 07:06:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:15,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943531341] [2022-07-14 07:06:15,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:15,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:15,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:15,668 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:15,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (89)] Waiting until timeout for monitored process [2022-07-14 07:06:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:15,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:15,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:15,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:15,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:15,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943531341] [2022-07-14 07:06:15,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943531341] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:15,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:15,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:15,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159699599] [2022-07-14 07:06:15,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:15,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:15,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:15,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:15,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:15,787 INFO L87 Difference]: Start difference. First operand 831 states and 1055 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:15,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:15,837 INFO L93 Difference]: Finished difference Result 852 states and 1078 transitions. [2022-07-14 07:06:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:15,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:06:15,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:15,838 INFO L225 Difference]: With dead ends: 852 [2022-07-14 07:06:15,838 INFO L226 Difference]: Without dead ends: 852 [2022-07-14 07:06:15,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:15,839 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 39 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:15,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2168 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:15,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-07-14 07:06:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 833. [2022-07-14 07:06:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 707 states have (on average 1.265912305516266) internal successors, (895), 723 states have internal predecessors, (895), 72 states have call successors, (72), 40 states have call predecessors, (72), 53 states have return successors, (90), 69 states have call predecessors, (90), 67 states have call successors, (90) [2022-07-14 07:06:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1057 transitions. [2022-07-14 07:06:15,846 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1057 transitions. Word has length 54 [2022-07-14 07:06:15,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:15,846 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1057 transitions. [2022-07-14 07:06:15,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:15,846 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1057 transitions. [2022-07-14 07:06:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:06:15,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:15,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:15,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (89)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:16,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:16,054 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1985097788, now seen corresponding path program 1 times [2022-07-14 07:06:16,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:16,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561712234] [2022-07-14 07:06:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:16,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:16,056 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:16,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (90)] Waiting until timeout for monitored process [2022-07-14 07:06:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:06:16,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:16,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:16,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561712234] [2022-07-14 07:06:16,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561712234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:06:16,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599725059] [2022-07-14 07:06:16,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:06:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:16,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:06:16,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:06:16,207 INFO L87 Difference]: Start difference. First operand 833 states and 1057 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,318 INFO L93 Difference]: Finished difference Result 851 states and 1076 transitions. [2022-07-14 07:06:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:06:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:06:16,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,319 INFO L225 Difference]: With dead ends: 851 [2022-07-14 07:06:16,319 INFO L226 Difference]: Without dead ends: 826 [2022-07-14 07:06:16,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:06:16,320 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 60 mSDsluCounter, 2987 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3430 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:16,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-07-14 07:06:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2022-07-14 07:06:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 701 states have (on average 1.2653352353780314) internal successors, (887), 717 states have internal predecessors, (887), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2022-07-14 07:06:16,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1047 transitions. [2022-07-14 07:06:16,326 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1047 transitions. Word has length 54 [2022-07-14 07:06:16,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,326 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1047 transitions. [2022-07-14 07:06:16,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:16,326 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1047 transitions. [2022-07-14 07:06:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:06:16,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:16,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (90)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:16,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:16,534 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1301879028, now seen corresponding path program 1 times [2022-07-14 07:06:16,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:16,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572954333] [2022-07-14 07:06:16,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:16,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:16,536 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:16,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2022-07-14 07:06:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:16,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:16,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:16,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:16,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:16,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572954333] [2022-07-14 07:06:16,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572954333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:16,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:16,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:16,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621048744] [2022-07-14 07:06:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:16,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:16,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:16,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:16,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:16,667 INFO L87 Difference]: Start difference. First operand 826 states and 1047 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:16,722 INFO L93 Difference]: Finished difference Result 847 states and 1070 transitions. [2022-07-14 07:06:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:06:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:16,723 INFO L225 Difference]: With dead ends: 847 [2022-07-14 07:06:16,723 INFO L226 Difference]: Without dead ends: 847 [2022-07-14 07:06:16,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:16,724 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 39 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:16,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 2140 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:16,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-07-14 07:06:16,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 828. [2022-07-14 07:06:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 703 states have (on average 1.2645803698435278) internal successors, (889), 719 states have internal predecessors, (889), 71 states have call successors, (71), 40 states have call predecessors, (71), 53 states have return successors, (89), 68 states have call predecessors, (89), 66 states have call successors, (89) [2022-07-14 07:06:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1049 transitions. [2022-07-14 07:06:16,736 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1049 transitions. Word has length 54 [2022-07-14 07:06:16,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:16,736 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1049 transitions. [2022-07-14 07:06:16,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:16,736 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1049 transitions. [2022-07-14 07:06:16,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:06:16,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:16,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:16,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:16,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:16,945 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:16,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:16,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1435892534, now seen corresponding path program 1 times [2022-07-14 07:06:16,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:16,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537502422] [2022-07-14 07:06:16,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:16,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:16,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:16,947 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:16,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (92)] Waiting until timeout for monitored process [2022-07-14 07:06:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:17,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:06:17,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:17,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:17,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:17,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537502422] [2022-07-14 07:06:17,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537502422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:17,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:17,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:06:17,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310652531] [2022-07-14 07:06:17,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:17,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:06:17,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:17,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:06:17,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:06:17,091 INFO L87 Difference]: Start difference. First operand 828 states and 1049 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:17,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:17,182 INFO L93 Difference]: Finished difference Result 846 states and 1068 transitions. [2022-07-14 07:06:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:06:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54 [2022-07-14 07:06:17,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:17,183 INFO L225 Difference]: With dead ends: 846 [2022-07-14 07:06:17,183 INFO L226 Difference]: Without dead ends: 823 [2022-07-14 07:06:17,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:06:17,184 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 60 mSDsluCounter, 2947 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3384 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:17,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3384 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:17,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-07-14 07:06:17,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 823. [2022-07-14 07:06:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 699 states have (on average 1.2632331902718168) internal successors, (883), 715 states have internal predecessors, (883), 70 states have call successors, (70), 40 states have call predecessors, (70), 53 states have return successors, (88), 67 states have call predecessors, (88), 65 states have call successors, (88) [2022-07-14 07:06:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1041 transitions. [2022-07-14 07:06:17,190 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1041 transitions. Word has length 54 [2022-07-14 07:06:17,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:17,190 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 1041 transitions. [2022-07-14 07:06:17,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1041 transitions. [2022-07-14 07:06:17,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:06:17,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:17,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:17,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (92)] Ended with exit code 0 [2022-07-14 07:06:17,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:17,392 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:17,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:17,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1137798806, now seen corresponding path program 1 times [2022-07-14 07:06:17,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:17,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018524564] [2022-07-14 07:06:17,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:17,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:17,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:17,393 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:17,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (93)] Waiting until timeout for monitored process [2022-07-14 07:06:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:17,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 07:06:17,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:17,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:17,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:17,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018524564] [2022-07-14 07:06:17,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018524564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:17,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:17,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:06:17,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641021591] [2022-07-14 07:06:17,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:17,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:06:17,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:06:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:06:17,562 INFO L87 Difference]: Start difference. First operand 823 states and 1041 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:17,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:17,682 INFO L93 Difference]: Finished difference Result 903 states and 1132 transitions. [2022-07-14 07:06:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:06:17,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2022-07-14 07:06:17,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:17,683 INFO L225 Difference]: With dead ends: 903 [2022-07-14 07:06:17,683 INFO L226 Difference]: Without dead ends: 852 [2022-07-14 07:06:17,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:06:17,683 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 91 mSDsluCounter, 3189 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:17,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 3599 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:17,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2022-07-14 07:06:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 833. [2022-07-14 07:06:17,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 708 states have (on average 1.25) internal successors, (885), 724 states have internal predecessors, (885), 70 states have call successors, (70), 40 states have call predecessors, (70), 54 states have return successors, (89), 68 states have call predecessors, (89), 65 states have call successors, (89) [2022-07-14 07:06:17,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1044 transitions. [2022-07-14 07:06:17,690 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1044 transitions. Word has length 54 [2022-07-14 07:06:17,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:17,690 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1044 transitions. [2022-07-14 07:06:17,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:17,691 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1044 transitions. [2022-07-14 07:06:17,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:17,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:17,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:17,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (93)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:17,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:17,899 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:17,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:17,899 INFO L85 PathProgramCache]: Analyzing trace with hash 169253140, now seen corresponding path program 1 times [2022-07-14 07:06:17,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:17,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928447947] [2022-07-14 07:06:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:17,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:17,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:17,900 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:17,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (94)] Waiting until timeout for monitored process [2022-07-14 07:06:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:17,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:06:17,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:18,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:18,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:18,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928447947] [2022-07-14 07:06:18,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928447947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:18,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:18,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:06:18,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248131311] [2022-07-14 07:06:18,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:18,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:06:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:18,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:06:18,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:18,012 INFO L87 Difference]: Start difference. First operand 833 states and 1044 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:18,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:18,044 INFO L93 Difference]: Finished difference Result 851 states and 1063 transitions. [2022-07-14 07:06:18,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:06:18,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2022-07-14 07:06:18,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:18,045 INFO L225 Difference]: With dead ends: 851 [2022-07-14 07:06:18,045 INFO L226 Difference]: Without dead ends: 851 [2022-07-14 07:06:18,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:06:18,045 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 18 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:18,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1690 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:18,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-07-14 07:06:18,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 833. [2022-07-14 07:06:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 708 states have (on average 1.2485875706214689) internal successors, (884), 724 states have internal predecessors, (884), 70 states have call successors, (70), 40 states have call predecessors, (70), 54 states have return successors, (89), 68 states have call predecessors, (89), 65 states have call successors, (89) [2022-07-14 07:06:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1043 transitions. [2022-07-14 07:06:18,052 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1043 transitions. Word has length 56 [2022-07-14 07:06:18,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:18,052 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1043 transitions. [2022-07-14 07:06:18,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:18,053 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1043 transitions. [2022-07-14 07:06:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:18,053 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:18,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:18,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (94)] Ended with exit code 0 [2022-07-14 07:06:18,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:18,254 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:18,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash 191885394, now seen corresponding path program 1 times [2022-07-14 07:06:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:18,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447776814] [2022-07-14 07:06:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:18,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:18,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:18,256 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:18,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (95)] Waiting until timeout for monitored process [2022-07-14 07:06:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:18,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:18,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:18,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:18,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:18,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447776814] [2022-07-14 07:06:18,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447776814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:18,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:18,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:18,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631607394] [2022-07-14 07:06:18,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:18,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:18,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:18,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:18,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:18,463 INFO L87 Difference]: Start difference. First operand 833 states and 1043 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:18,608 INFO L93 Difference]: Finished difference Result 850 states and 1061 transitions. [2022-07-14 07:06:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:18,608 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2022-07-14 07:06:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:18,610 INFO L225 Difference]: With dead ends: 850 [2022-07-14 07:06:18,610 INFO L226 Difference]: Without dead ends: 826 [2022-07-14 07:06:18,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:06:18,610 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 62 mSDsluCounter, 4098 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:18,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4520 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:18,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-07-14 07:06:18,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2022-07-14 07:06:18,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 702 states have (on average 1.2478632478632479) internal successors, (876), 718 states have internal predecessors, (876), 69 states have call successors, (69), 40 states have call predecessors, (69), 54 states have return successors, (87), 67 states have call predecessors, (87), 64 states have call successors, (87) [2022-07-14 07:06:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1032 transitions. [2022-07-14 07:06:18,616 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1032 transitions. Word has length 56 [2022-07-14 07:06:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:18,616 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1032 transitions. [2022-07-14 07:06:18,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:18,616 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1032 transitions. [2022-07-14 07:06:18,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:18,617 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:18,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:18,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (95)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:18,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:18,818 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:18,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:18,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2005785928, now seen corresponding path program 1 times [2022-07-14 07:06:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:18,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058267435] [2022-07-14 07:06:18,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:18,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:18,819 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:18,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (96)] Waiting until timeout for monitored process [2022-07-14 07:06:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:18,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:18,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:19,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:19,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:19,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058267435] [2022-07-14 07:06:19,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058267435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:19,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:19,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:19,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710501288] [2022-07-14 07:06:19,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:19,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:19,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:19,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:19,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:19,015 INFO L87 Difference]: Start difference. First operand 826 states and 1032 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:19,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:19,173 INFO L93 Difference]: Finished difference Result 843 states and 1049 transitions. [2022-07-14 07:06:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:19,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 56 [2022-07-14 07:06:19,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:19,175 INFO L225 Difference]: With dead ends: 843 [2022-07-14 07:06:19,175 INFO L226 Difference]: Without dead ends: 821 [2022-07-14 07:06:19,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:06:19,175 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 62 mSDsluCounter, 4016 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4430 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:19,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4430 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:19,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-07-14 07:06:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-07-14 07:06:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 698 states have (on average 1.2449856733524356) internal successors, (869), 714 states have internal predecessors, (869), 68 states have call successors, (68), 40 states have call predecessors, (68), 54 states have return successors, (86), 66 states have call predecessors, (86), 63 states have call successors, (86) [2022-07-14 07:06:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1023 transitions. [2022-07-14 07:06:19,181 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1023 transitions. Word has length 56 [2022-07-14 07:06:19,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:19,181 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1023 transitions. [2022-07-14 07:06:19,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:19,181 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1023 transitions. [2022-07-14 07:06:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-14 07:06:19,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:19,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:19,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (96)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:19,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:19,389 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:19,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:19,390 INFO L85 PathProgramCache]: Analyzing trace with hash -470261491, now seen corresponding path program 1 times [2022-07-14 07:06:19,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:19,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488028050] [2022-07-14 07:06:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:19,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:19,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:19,391 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:19,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (97)] Waiting until timeout for monitored process [2022-07-14 07:06:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:19,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:19,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:19,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:19,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:19,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:19,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488028050] [2022-07-14 07:06:19,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488028050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:19,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:19,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:19,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205038141] [2022-07-14 07:06:19,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:19,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:19,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:19,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:19,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:19,629 INFO L87 Difference]: Start difference. First operand 821 states and 1023 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:06:19,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:19,790 INFO L93 Difference]: Finished difference Result 844 states and 1046 transitions. [2022-07-14 07:06:19,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:19,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2022-07-14 07:06:19,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:19,792 INFO L225 Difference]: With dead ends: 844 [2022-07-14 07:06:19,792 INFO L226 Difference]: Without dead ends: 820 [2022-07-14 07:06:19,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:19,792 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 45 mSDsluCounter, 3508 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3914 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:19,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3914 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-07-14 07:06:19,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2022-07-14 07:06:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 697 states have (on average 1.242467718794835) internal successors, (866), 713 states have internal predecessors, (866), 68 states have call successors, (68), 40 states have call predecessors, (68), 54 states have return successors, (86), 66 states have call predecessors, (86), 63 states have call successors, (86) [2022-07-14 07:06:19,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1020 transitions. [2022-07-14 07:06:19,800 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1020 transitions. Word has length 64 [2022-07-14 07:06:19,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:19,801 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1020 transitions. [2022-07-14 07:06:19,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 10 states have internal predecessors, (57), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:06:19,801 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1020 transitions. [2022-07-14 07:06:19,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 07:06:19,802 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:19,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:19,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (97)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:20,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:20,003 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:20,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:20,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1622755266, now seen corresponding path program 1 times [2022-07-14 07:06:20,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:20,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718250840] [2022-07-14 07:06:20,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:20,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:20,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:20,005 INFO L229 MonitoredProcess]: Starting monitored process 98 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:20,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (98)] Waiting until timeout for monitored process [2022-07-14 07:06:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:20,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:20,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:20,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:20,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:20,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718250840] [2022-07-14 07:06:20,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718250840] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:20,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:20,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:20,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567096353] [2022-07-14 07:06:20,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:20,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:20,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:20,113 INFO L87 Difference]: Start difference. First operand 820 states and 1020 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 07:06:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:20,119 INFO L93 Difference]: Finished difference Result 760 states and 929 transitions. [2022-07-14 07:06:20,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:20,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2022-07-14 07:06:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:20,120 INFO L225 Difference]: With dead ends: 760 [2022-07-14 07:06:20,120 INFO L226 Difference]: Without dead ends: 760 [2022-07-14 07:06:20,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:20,120 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:20,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 789 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:20,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-07-14 07:06:20,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2022-07-14 07:06:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 649 states have (on average 1.2203389830508475) internal successors, (792), 664 states have internal predecessors, (792), 61 states have call successors, (61), 35 states have call predecessors, (61), 49 states have return successors, (76), 60 states have call predecessors, (76), 57 states have call successors, (76) [2022-07-14 07:06:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 929 transitions. [2022-07-14 07:06:20,126 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 929 transitions. Word has length 59 [2022-07-14 07:06:20,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:20,126 INFO L495 AbstractCegarLoop]: Abstraction has 760 states and 929 transitions. [2022-07-14 07:06:20,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 07:06:20,126 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 929 transitions. [2022-07-14 07:06:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:06:20,127 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:20,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:20,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (98)] Ended with exit code 0 [2022-07-14 07:06:20,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:20,332 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:20,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:20,332 INFO L85 PathProgramCache]: Analyzing trace with hash -233501783, now seen corresponding path program 1 times [2022-07-14 07:06:20,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:20,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287153603] [2022-07-14 07:06:20,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:20,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:20,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:20,334 INFO L229 MonitoredProcess]: Starting monitored process 99 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:20,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (99)] Waiting until timeout for monitored process [2022-07-14 07:06:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:20,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:20,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:20,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:20,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:20,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287153603] [2022-07-14 07:06:20,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287153603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:20,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:20,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:20,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183792451] [2022-07-14 07:06:20,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:20,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:20,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:20,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:20,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:20,508 INFO L87 Difference]: Start difference. First operand 760 states and 929 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:20,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:20,664 INFO L93 Difference]: Finished difference Result 776 states and 944 transitions. [2022-07-14 07:06:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:20,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2022-07-14 07:06:20,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:20,665 INFO L225 Difference]: With dead ends: 776 [2022-07-14 07:06:20,665 INFO L226 Difference]: Without dead ends: 750 [2022-07-14 07:06:20,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:06:20,665 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 62 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 4291 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:20,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 4291 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-07-14 07:06:20,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2022-07-14 07:06:20,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 640 states have (on average 1.2125) internal successors, (776), 655 states have internal predecessors, (776), 60 states have call successors, (60), 35 states have call predecessors, (60), 49 states have return successors, (75), 59 states have call predecessors, (75), 56 states have call successors, (75) [2022-07-14 07:06:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 911 transitions. [2022-07-14 07:06:20,673 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 911 transitions. Word has length 57 [2022-07-14 07:06:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:20,673 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 911 transitions. [2022-07-14 07:06:20,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 07:06:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 911 transitions. [2022-07-14 07:06:20,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-14 07:06:20,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:20,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:20,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (99)] Ended with exit code 0 [2022-07-14 07:06:20,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:20,875 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:20,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:20,875 INFO L85 PathProgramCache]: Analyzing trace with hash 704396185, now seen corresponding path program 1 times [2022-07-14 07:06:20,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:20,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283922025] [2022-07-14 07:06:20,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:20,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:20,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:20,876 INFO L229 MonitoredProcess]: Starting monitored process 100 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:20,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (100)] Waiting until timeout for monitored process [2022-07-14 07:06:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:21,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:21,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:21,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:21,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:21,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283922025] [2022-07-14 07:06:21,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283922025] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:21,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:21,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:21,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530391733] [2022-07-14 07:06:21,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:21,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:21,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:21,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:21,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:21,131 INFO L87 Difference]: Start difference. First operand 750 states and 911 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:06:21,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:21,296 INFO L93 Difference]: Finished difference Result 804 states and 965 transitions. [2022-07-14 07:06:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:21,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 66 [2022-07-14 07:06:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:21,298 INFO L225 Difference]: With dead ends: 804 [2022-07-14 07:06:21,298 INFO L226 Difference]: Without dead ends: 780 [2022-07-14 07:06:21,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:21,298 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 46 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:21,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3722 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-07-14 07:06:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 740. [2022-07-14 07:06:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 632 states have (on average 1.2136075949367089) internal successors, (767), 646 states have internal predecessors, (767), 60 states have call successors, (60), 35 states have call predecessors, (60), 47 states have return successors, (73), 58 states have call predecessors, (73), 56 states have call successors, (73) [2022-07-14 07:06:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 900 transitions. [2022-07-14 07:06:21,313 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 900 transitions. Word has length 66 [2022-07-14 07:06:21,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:21,313 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 900 transitions. [2022-07-14 07:06:21,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:06:21,313 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 900 transitions. [2022-07-14 07:06:21,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:06:21,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:21,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:21,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (100)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:21,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:21,515 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1477617433, now seen corresponding path program 1 times [2022-07-14 07:06:21,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:21,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176241757] [2022-07-14 07:06:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:21,516 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:21,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:21,518 INFO L229 MonitoredProcess]: Starting monitored process 101 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:21,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (101)] Waiting until timeout for monitored process [2022-07-14 07:06:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:21,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:21,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:21,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:21,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:21,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:21,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176241757] [2022-07-14 07:06:21,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176241757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:21,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:21,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:21,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290052394] [2022-07-14 07:06:21,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:21,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:21,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:21,647 INFO L87 Difference]: Start difference. First operand 740 states and 900 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:21,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:21,695 INFO L93 Difference]: Finished difference Result 777 states and 940 transitions. [2022-07-14 07:06:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:21,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2022-07-14 07:06:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:21,697 INFO L225 Difference]: With dead ends: 777 [2022-07-14 07:06:21,697 INFO L226 Difference]: Without dead ends: 777 [2022-07-14 07:06:21,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:21,697 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 52 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:21,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1971 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2022-07-14 07:06:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 740. [2022-07-14 07:06:21,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 632 states have (on average 1.2120253164556962) internal successors, (766), 646 states have internal predecessors, (766), 60 states have call successors, (60), 35 states have call predecessors, (60), 47 states have return successors, (73), 58 states have call predecessors, (73), 56 states have call successors, (73) [2022-07-14 07:06:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 899 transitions. [2022-07-14 07:06:21,704 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 899 transitions. Word has length 57 [2022-07-14 07:06:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:21,705 INFO L495 AbstractCegarLoop]: Abstraction has 740 states and 899 transitions. [2022-07-14 07:06:21,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:21,705 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 899 transitions. [2022-07-14 07:06:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:06:21,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:21,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:21,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (101)] Ended with exit code 0 [2022-07-14 07:06:21,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:21,920 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:21,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1611630939, now seen corresponding path program 1 times [2022-07-14 07:06:21,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:21,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101303715] [2022-07-14 07:06:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:21,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:21,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:21,922 INFO L229 MonitoredProcess]: Starting monitored process 102 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:21,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (102)] Waiting until timeout for monitored process [2022-07-14 07:06:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:22,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:06:22,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:22,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:22,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:22,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:22,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101303715] [2022-07-14 07:06:22,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101303715] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:22,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:22,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:06:22,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379854735] [2022-07-14 07:06:22,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:22,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:06:22,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:22,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:06:22,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:06:22,089 INFO L87 Difference]: Start difference. First operand 740 states and 899 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:22,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:22,201 INFO L93 Difference]: Finished difference Result 760 states and 921 transitions. [2022-07-14 07:06:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:06:22,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2022-07-14 07:06:22,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:22,202 INFO L225 Difference]: With dead ends: 760 [2022-07-14 07:06:22,202 INFO L226 Difference]: Without dead ends: 720 [2022-07-14 07:06:22,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:06:22,203 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 73 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:22,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 3000 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:22,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-07-14 07:06:22,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-07-14 07:06:22,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 616 states have (on average 1.2077922077922079) internal successors, (744), 629 states have internal predecessors, (744), 56 states have call successors, (56), 35 states have call predecessors, (56), 47 states have return successors, (68), 55 states have call predecessors, (68), 52 states have call successors, (68) [2022-07-14 07:06:22,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 868 transitions. [2022-07-14 07:06:22,210 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 868 transitions. Word has length 57 [2022-07-14 07:06:22,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:22,210 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 868 transitions. [2022-07-14 07:06:22,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 868 transitions. [2022-07-14 07:06:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:22,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:22,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:22,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (102)] Ended with exit code 0 [2022-07-14 07:06:22,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:22,412 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:22,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:22,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473366, now seen corresponding path program 1 times [2022-07-14 07:06:22,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:22,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1201869490] [2022-07-14 07:06:22,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:22,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:22,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:22,414 INFO L229 MonitoredProcess]: Starting monitored process 103 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:22,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (103)] Waiting until timeout for monitored process [2022-07-14 07:06:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:22,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:06:22,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:22,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:22,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:22,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:22,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1201869490] [2022-07-14 07:06:22,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1201869490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:22,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:22,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:06:22,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483076844] [2022-07-14 07:06:22,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:22,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:06:22,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:22,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:06:22,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:06:22,540 INFO L87 Difference]: Start difference. First operand 720 states and 868 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:22,587 INFO L93 Difference]: Finished difference Result 739 states and 887 transitions. [2022-07-14 07:06:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:06:22,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2022-07-14 07:06:22,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:22,589 INFO L225 Difference]: With dead ends: 739 [2022-07-14 07:06:22,589 INFO L226 Difference]: Without dead ends: 739 [2022-07-14 07:06:22,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:06:22,589 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 39 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:22,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1759 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-07-14 07:06:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 720. [2022-07-14 07:06:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 616 states have (on average 1.2045454545454546) internal successors, (742), 629 states have internal predecessors, (742), 56 states have call successors, (56), 35 states have call predecessors, (56), 47 states have return successors, (68), 55 states have call predecessors, (68), 52 states have call successors, (68) [2022-07-14 07:06:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 866 transitions. [2022-07-14 07:06:22,597 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 866 transitions. Word has length 56 [2022-07-14 07:06:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:22,597 INFO L495 AbstractCegarLoop]: Abstraction has 720 states and 866 transitions. [2022-07-14 07:06:22,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 866 transitions. [2022-07-14 07:06:22,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:22,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:22,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:22,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (103)] Ended with exit code 0 [2022-07-14 07:06:22,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:22,799 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:22,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:22,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1628459860, now seen corresponding path program 1 times [2022-07-14 07:06:22,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:22,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118383105] [2022-07-14 07:06:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:22,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:22,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:22,801 INFO L229 MonitoredProcess]: Starting monitored process 104 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:22,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (104)] Waiting until timeout for monitored process [2022-07-14 07:06:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:22,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 07:06:22,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:22,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:22,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:22,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118383105] [2022-07-14 07:06:22,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118383105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:22,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:22,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:06:22,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755845781] [2022-07-14 07:06:22,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:22,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:06:22,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:22,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:06:22,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:06:22,963 INFO L87 Difference]: Start difference. First operand 720 states and 866 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:23,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:23,057 INFO L93 Difference]: Finished difference Result 738 states and 885 transitions. [2022-07-14 07:06:23,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:06:23,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2022-07-14 07:06:23,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:23,058 INFO L225 Difference]: With dead ends: 738 [2022-07-14 07:06:23,058 INFO L226 Difference]: Without dead ends: 712 [2022-07-14 07:06:23,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:06:23,059 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 60 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:23,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 2759 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-07-14 07:06:23,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2022-07-14 07:06:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 609 states have (on average 1.2036124794745484) internal successors, (733), 622 states have internal predecessors, (733), 55 states have call successors, (55), 35 states have call predecessors, (55), 47 states have return successors, (66), 54 states have call predecessors, (66), 51 states have call successors, (66) [2022-07-14 07:06:23,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 854 transitions. [2022-07-14 07:06:23,067 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 854 transitions. Word has length 56 [2022-07-14 07:06:23,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:23,067 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 854 transitions. [2022-07-14 07:06:23,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:06:23,067 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 854 transitions. [2022-07-14 07:06:23,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:23,068 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:23,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:23,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (104)] Ended with exit code 0 [2022-07-14 07:06:23,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:23,269 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:23,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:23,269 INFO L85 PathProgramCache]: Analyzing trace with hash 474047414, now seen corresponding path program 1 times [2022-07-14 07:06:23,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:23,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309456707] [2022-07-14 07:06:23,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:23,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:23,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:23,271 INFO L229 MonitoredProcess]: Starting monitored process 105 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:23,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (105)] Waiting until timeout for monitored process [2022-07-14 07:06:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:23,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 07:06:23,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:23,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:23,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:23,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309456707] [2022-07-14 07:06:23,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309456707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:23,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:23,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:06:23,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554904667] [2022-07-14 07:06:23,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:23,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:06:23,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:06:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:06:23,466 INFO L87 Difference]: Start difference. First operand 712 states and 854 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:23,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:23,589 INFO L93 Difference]: Finished difference Result 816 states and 971 transitions. [2022-07-14 07:06:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:06:23,590 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-07-14 07:06:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:23,591 INFO L225 Difference]: With dead ends: 816 [2022-07-14 07:06:23,591 INFO L226 Difference]: Without dead ends: 788 [2022-07-14 07:06:23,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:06:23,591 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 93 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:23,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2656 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:23,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-07-14 07:06:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 772. [2022-07-14 07:06:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 665 states have (on average 1.1969924812030075) internal successors, (796), 679 states have internal predecessors, (796), 55 states have call successors, (55), 35 states have call predecessors, (55), 51 states have return successors, (70), 57 states have call predecessors, (70), 51 states have call successors, (70) [2022-07-14 07:06:23,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 921 transitions. [2022-07-14 07:06:23,597 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 921 transitions. Word has length 56 [2022-07-14 07:06:23,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:23,597 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 921 transitions. [2022-07-14 07:06:23,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 921 transitions. [2022-07-14 07:06:23,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:06:23,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:23,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:23,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (105)] Ended with exit code 0 [2022-07-14 07:06:23,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:23,798 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:23,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1924152368, now seen corresponding path program 1 times [2022-07-14 07:06:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:23,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [68324514] [2022-07-14 07:06:23,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:23,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:23,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:23,800 INFO L229 MonitoredProcess]: Starting monitored process 106 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:23,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (106)] Waiting until timeout for monitored process [2022-07-14 07:06:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:23,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:23,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:23,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:23,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:23,910 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:23,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [68324514] [2022-07-14 07:06:23,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [68324514] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:23,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:23,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:23,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168375818] [2022-07-14 07:06:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:23,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:23,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:23,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:23,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:23,917 INFO L87 Difference]: Start difference. First operand 772 states and 921 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:23,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:23,933 INFO L93 Difference]: Finished difference Result 785 states and 929 transitions. [2022-07-14 07:06:23,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:23,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2022-07-14 07:06:23,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:23,934 INFO L225 Difference]: With dead ends: 785 [2022-07-14 07:06:23,934 INFO L226 Difference]: Without dead ends: 779 [2022-07-14 07:06:23,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:23,935 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 324 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:23,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 390 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:23,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2022-07-14 07:06:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 729. [2022-07-14 07:06:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 624 states have (on average 1.189102564102564) internal successors, (742), 638 states have internal predecessors, (742), 55 states have call successors, (55), 35 states have call predecessors, (55), 49 states have return successors, (68), 55 states have call predecessors, (68), 51 states have call successors, (68) [2022-07-14 07:06:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 865 transitions. [2022-07-14 07:06:23,941 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 865 transitions. Word has length 56 [2022-07-14 07:06:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:23,942 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 865 transitions. [2022-07-14 07:06:23,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 865 transitions. [2022-07-14 07:06:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:06:23,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:23,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:23,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (106)] Forceful destruction successful, exit code 0 [2022-07-14 07:06:24,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:24,152 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:24,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1608050986, now seen corresponding path program 1 times [2022-07-14 07:06:24,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:24,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822812928] [2022-07-14 07:06:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:24,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:24,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:24,153 INFO L229 MonitoredProcess]: Starting monitored process 107 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:24,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (107)] Waiting until timeout for monitored process [2022-07-14 07:06:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:24,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 07:06:24,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:24,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:24,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:24,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822812928] [2022-07-14 07:06:24,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822812928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:24,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:24,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:06:24,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669397498] [2022-07-14 07:06:24,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:24,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:06:24,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:24,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:06:24,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:06:24,369 INFO L87 Difference]: Start difference. First operand 729 states and 865 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:24,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:24,520 INFO L93 Difference]: Finished difference Result 753 states and 889 transitions. [2022-07-14 07:06:24,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:06:24,520 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-07-14 07:06:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:24,521 INFO L225 Difference]: With dead ends: 753 [2022-07-14 07:06:24,521 INFO L226 Difference]: Without dead ends: 719 [2022-07-14 07:06:24,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:06:24,521 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 46 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:24,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3288 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-07-14 07:06:24,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 707. [2022-07-14 07:06:24,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 605 states have (on average 1.1884297520661158) internal successors, (719), 618 states have internal predecessors, (719), 52 states have call successors, (52), 35 states have call predecessors, (52), 49 states have return successors, (65), 53 states have call predecessors, (65), 48 states have call successors, (65) [2022-07-14 07:06:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 836 transitions. [2022-07-14 07:06:24,531 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 836 transitions. Word has length 57 [2022-07-14 07:06:24,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:24,531 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 836 transitions. [2022-07-14 07:06:24,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 10 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 836 transitions. [2022-07-14 07:06:24,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:06:24,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:24,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:24,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (107)] Ended with exit code 0 [2022-07-14 07:06:24,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:24,740 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:24,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1546270633, now seen corresponding path program 1 times [2022-07-14 07:06:24,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:24,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299486314] [2022-07-14 07:06:24,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:24,741 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:24,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:24,742 INFO L229 MonitoredProcess]: Starting monitored process 108 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:24,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (108)] Waiting until timeout for monitored process [2022-07-14 07:06:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:24,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 07:06:24,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:24,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:24,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:24,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299486314] [2022-07-14 07:06:24,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299486314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:24,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:24,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:06:24,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457099825] [2022-07-14 07:06:24,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:24,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:06:24,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:24,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:06:24,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:06:24,922 INFO L87 Difference]: Start difference. First operand 707 states and 836 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:25,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:25,044 INFO L93 Difference]: Finished difference Result 729 states and 857 transitions. [2022-07-14 07:06:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:06:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-07-14 07:06:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:25,045 INFO L225 Difference]: With dead ends: 729 [2022-07-14 07:06:25,045 INFO L226 Difference]: Without dead ends: 688 [2022-07-14 07:06:25,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:06:25,045 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 95 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:25,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 2535 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:06:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-14 07:06:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 631. [2022-07-14 07:06:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 535 states have (on average 1.194392523364486) internal successors, (639), 546 states have internal predecessors, (639), 52 states have call successors, (52), 35 states have call predecessors, (52), 43 states have return successors, (59), 49 states have call predecessors, (59), 48 states have call successors, (59) [2022-07-14 07:06:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 750 transitions. [2022-07-14 07:06:25,050 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 750 transitions. Word has length 57 [2022-07-14 07:06:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:25,051 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 750 transitions. [2022-07-14 07:06:25,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:06:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 750 transitions. [2022-07-14 07:06:25,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:06:25,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:25,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:25,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (108)] Ended with exit code 0 [2022-07-14 07:06:25,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:25,252 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:25,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash 218918919, now seen corresponding path program 1 times [2022-07-14 07:06:25,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:25,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193123123] [2022-07-14 07:06:25,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:25,253 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:25,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:25,254 INFO L229 MonitoredProcess]: Starting monitored process 109 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:25,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (109)] Waiting until timeout for monitored process [2022-07-14 07:06:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:06:25,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 07:06:25,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:06:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:06:25,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:06:25,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 07:06:25,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193123123] [2022-07-14 07:06:25,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193123123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:06:25,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:06:25,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:06:25,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793644195] [2022-07-14 07:06:25,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:06:25,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:06:25,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 07:06:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:06:25,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:25,369 INFO L87 Difference]: Start difference. First operand 631 states and 750 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:25,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:06:25,390 INFO L93 Difference]: Finished difference Result 794 states and 946 transitions. [2022-07-14 07:06:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:06:25,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2022-07-14 07:06:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:06:25,391 INFO L225 Difference]: With dead ends: 794 [2022-07-14 07:06:25,391 INFO L226 Difference]: Without dead ends: 794 [2022-07-14 07:06:25,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:06:25,391 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 281 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:06:25,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:06:25,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-07-14 07:06:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 459. [2022-07-14 07:06:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 393 states have (on average 1.1755725190839694) internal successors, (462), 399 states have internal predecessors, (462), 36 states have call successors, (36), 24 states have call predecessors, (36), 29 states have return successors, (38), 35 states have call predecessors, (38), 32 states have call successors, (38) [2022-07-14 07:06:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 536 transitions. [2022-07-14 07:06:25,395 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 536 transitions. Word has length 58 [2022-07-14 07:06:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:06:25,395 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 536 transitions. [2022-07-14 07:06:25,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 07:06:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 536 transitions. [2022-07-14 07:06:25,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:06:25,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:06:25,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:25,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (109)] Ended with exit code 0 [2022-07-14 07:06:25,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 109 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:25,596 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:06:25,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:06:25,596 INFO L85 PathProgramCache]: Analyzing trace with hash -2090035410, now seen corresponding path program 1 times [2022-07-14 07:06:25,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 07:06:25,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094161899] [2022-07-14 07:06:25,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:06:25,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 07:06:25,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 07:06:25,598 INFO L229 MonitoredProcess]: Starting monitored process 110 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 07:06:25,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (110)] Waiting until timeout for monitored process [2022-07-14 07:06:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:06:25,686 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 07:06:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 07:06:25,802 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-14 07:06:25,803 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 07:06:25,803 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-14 07:06:25,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-14 07:06:25,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (110)] Ended with exit code 0 [2022-07-14 07:06:26,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 07:06:26,014 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:06:26,016 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 07:06:26,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 07:06:26 BoogieIcfgContainer [2022-07-14 07:06:26,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 07:06:26,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 07:06:26,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 07:06:26,096 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 07:06:26,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:31" (3/4) ... [2022-07-14 07:06:26,100 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 07:06:26,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 07:06:26,100 INFO L158 Benchmark]: Toolchain (without parser) took 56517.79ms. Allocated memory was 48.2MB in the beginning and 117.4MB in the end (delta: 69.2MB). Free memory was 32.5MB in the beginning and 56.4MB in the end (delta: -23.9MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2022-07-14 07:06:26,100 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.7MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:26,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.50ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 32.4MB in the beginning and 28.1MB in the end (delta: 4.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-07-14 07:06:26,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.46ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 38.8MB in the end (delta: 5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 07:06:26,101 INFO L158 Benchmark]: Boogie Preprocessor took 85.87ms. Allocated memory is still 62.9MB. Free memory was 38.8MB in the beginning and 34.0MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 07:06:26,101 INFO L158 Benchmark]: RCFGBuilder took 1057.32ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 34.0MB in the beginning and 38.7MB in the end (delta: -4.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-07-14 07:06:26,101 INFO L158 Benchmark]: TraceAbstraction took 54778.91ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 37.9MB in the beginning and 56.4MB in the end (delta: -18.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-07-14 07:06:26,101 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 117.4MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:06:26,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.7MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.50ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 32.4MB in the beginning and 28.1MB in the end (delta: 4.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.46ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 38.8MB in the end (delta: 5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.87ms. Allocated memory is still 62.9MB. Free memory was 38.8MB in the beginning and 34.0MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1057.32ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 34.0MB in the beginning and 38.7MB in the end (delta: -4.7MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 54778.91ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 37.9MB in the beginning and 56.4MB in the end (delta: -18.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 117.4MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 59. Possible FailurePath: [L32] int s ; [L33] int UNLOADED ; [L34] int NP ; [L35] int DC ; [L36] int SKIP1 ; [L37] int SKIP2 ; [L38] int MPR1 ; [L39] int MPR3 ; [L40] int IPC ; [L41] int pended ; [L42] int compFptr ; [L43] int compRegistered ; [L44] int lowerDriverReturn ; [L45] int setEventCalled ; [L46] int customIrp ; [L47] int routine ; [L48] int myStatus ; [L49] int pirp ; [L50] int Executive ; [L51] int Suspended ; [L52] int KernelMode ; [L53] int DeviceUsageTypePaging ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DeviceUsageTypePaging=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=0, routine=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L1718] int pirp__IoStatus__Status ; [L1719] int d = __VERIFIER_nondet_int() ; [L1720] int status = __VERIFIER_nondet_int() ; [L1721] int irp = __VERIFIER_nondet_int() ; [L1722] int we_should_unload = __VERIFIER_nondet_int() ; [L1723] int irp_choice = __VERIFIER_nondet_int() ; [L1724] int devobj = __VERIFIER_nondet_int() ; [L1725] int __cil_tmp9 ; [L1730] s = 0 [L1731] UNLOADED = 0 [L1732] NP = 0 [L1733] DC = 0 [L1734] SKIP1 = 0 [L1735] SKIP2 = 0 [L1736] MPR1 = 0 [L1737] MPR3 = 0 [L1738] IPC = 0 [L1739] pended = 0 [L1740] compFptr = 0 [L1741] compRegistered = 0 [L1742] lowerDriverReturn = 0 [L1743] setEventCalled = 0 [L1744] customIrp = 0 [L1745] routine = 0 [L1746] myStatus = 0 [L1747] pirp = 0 [L1748] Executive = 0 [L1749] Suspended = 5 [L1750] KernelMode = 0 [L1751] DeviceUsageTypePaging = 1 [L1754] pirp = irp [L1755] CALL _BLAST_init() [L67] UNLOADED = 0 [L68] NP = 1 [L69] DC = 2 [L70] SKIP1 = 3 [L71] SKIP2 = 4 [L72] MPR1 = 5 [L73] MPR3 = 6 [L74] IPC = 7 [L75] s = UNLOADED [L76] pended = 0 [L77] compFptr = 0 [L78] compRegistered = 0 [L79] lowerDriverReturn = 0 [L80] setEventCalled = 0 [L81] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=9, routine=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1755] RET _BLAST_init() [L1757] COND TRUE status >= 0 [L1758] s = NP [L1759] customIrp = 0 [L1760] setEventCalled = customIrp [L1761] lowerDriverReturn = setEventCalled [L1762] compRegistered = lowerDriverReturn [L1763] compFptr = compRegistered [L1764] pended = compFptr [L1765] pirp__IoStatus__Status = 0 [L1766] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1767] COND TRUE irp_choice == 0 [L1768] pirp__IoStatus__Status = -1073741637 [L1769] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1772] CALL stub_driver_init() [L1707] s = NP [L1708] customIrp = 0 [L1709] setEventCalled = customIrp [L1710] lowerDriverReturn = setEventCalled [L1711] compRegistered = lowerDriverReturn [L1712] compFptr = compRegistered [L1713] pended = compFptr VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1772] RET stub_driver_init() [L1775] COND FALSE !(status < 0) [L1779] int tmp_ndt_1; [L1780] tmp_ndt_1 = __VERIFIER_nondet_int() [L1781] COND TRUE tmp_ndt_1 == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0] [L1798] CALL, EXPR CdAudioDeviceControl(devobj, pirp) [L313] int deviceExtension__Active = __VERIFIER_nondet_int() ; [L314] int status ; VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L317] COND FALSE !(deviceExtension__Active == 2) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L320] COND FALSE !(deviceExtension__Active == 3) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L323] COND FALSE !(deviceExtension__Active == 1) VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L326] COND TRUE deviceExtension__Active == 7 VAL [\old(DeviceObject)=8, \old(Irp)=9, compFptr=0, compRegistered=0, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L348] CALL, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L1591] int currentIrpStack__Parameters__DeviceIoControl__IoControlCode = __VERIFIER_nondet_int() ; [L1592] int deviceExtension__TargetDeviceObject = __VERIFIER_nondet_int() ; [L1593] int irpSp__Control ; [L1594] int tmp ; [L1595] int tmp___0 ; [L1596] int __cil_tmp8 ; [L1597] int __cil_tmp9 ; [L1598] int __cil_tmp10 ; [L1599] int __cil_tmp11 ; [L1600] int __cil_tmp12 ; [L1604] __cil_tmp8 = 56 [L1605] __cil_tmp9 = 16384 [L1606] __cil_tmp10 = 131072 [L1607] __cil_tmp11 = 147456 [L1608] __cil_tmp12 = 147512 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1609] COND TRUE currentIrpStack__Parameters__DeviceIoControl__IoControlCode == __cil_tmp12 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1610] COND FALSE !(s != NP) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=0, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1615] COND FALSE !(compRegistered != 0) [L1620] compRegistered = 1 [L1621] routine = 0 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1625] irpSp__Control = 224 VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] CALL, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1900] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1901] int returnVal2 ; [L1902] int compRetStatus ; [L1903] int lcontext = __VERIFIER_nondet_int() ; [L1904] unsigned long __cil_tmp8 ; VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1907] COND TRUE \read(compRegistered) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1908] COND TRUE routine == 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] CALL, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1569] int Irp__PendingReturned = __VERIFIER_nondet_int() ; [L1570] int Irp__AssociatedIrp__SystemBuffer = __VERIFIER_nondet_int() ; [L1573] COND TRUE \read(Irp__PendingReturned) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1574] COND TRUE pended == 0 [L1575] pended = 1 VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1582] COND FALSE !(myStatus >= 0) VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1587] return (myStatus); VAL [\old(Context)=11, \old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=-1073741637, compFptr=0, compRegistered=1, Context=11, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__AssociatedIrp__SystemBuffer=13, Irp__PendingReturned=2147483648, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] RET, EXPR HPCdrCompletion(DeviceObject, Irp, lcontext) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, HPCdrCompletion(DeviceObject, Irp, lcontext)=-1073741637, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1910] compRetStatus = HPCdrCompletion(DeviceObject, Irp, lcontext) [L1920] __cil_tmp8 = (unsigned long )compRetStatus VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1921] COND FALSE !(__cil_tmp8 == -1073741802) VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1928] COND FALSE !(\read(Irp__PendingReturned)) [L1931] int tmp_ndt_4; [L1932] tmp_ndt_4 = __VERIFIER_nondet_int() [L1933] COND TRUE tmp_ndt_4 == 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1944] returnVal2 = 0 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1958] COND TRUE s == NP [L1959] s = IPC [L1960] lowerDriverReturn = returnVal2 VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1981] return (returnVal2); VAL [\old(DeviceObject)=10, \old(Irp)=9, \old(lowerDriverReturn)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \result=0, __cil_tmp8=3221225659, compFptr=0, compRegistered=1, compRetStatus=3221225659, customIrp=0, DC=2, DeviceObject=10, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, Irp__PendingReturned=0, KernelMode=0, lcontext=11, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, returnVal2=0, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp_ndt_4=0, UNLOADED=0] [L1626] RET, EXPR IofCallDriver(deviceExtension__TargetDeviceObject, Irp) VAL [\old(DeviceObject)=8, \old(Irp)=9, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=10, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IofCallDriver(deviceExtension__TargetDeviceObject, Irp)=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L1626] tmp = IofCallDriver(deviceExtension__TargetDeviceObject, Irp) [L1628] return (tmp); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, __cil_tmp10=131072, __cil_tmp11=147456, __cil_tmp12=147512, __cil_tmp8=56, __cil_tmp9=16384, compFptr=0, compRegistered=1, currentIrpStack__Parameters__DeviceIoControl__IoControlCode=147512, customIrp=0, DC=2, deviceExtension__TargetDeviceObject=10, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, irpSp__Control=224, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, tmp=0, UNLOADED=0] [L348] RET, EXPR CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L348] status = CdAudioHPCdrDeviceControl(DeviceObject, Irp) [L363] return (status); VAL [\old(DeviceObject)=8, \old(Irp)=9, \result=0, compFptr=0, compRegistered=1, customIrp=0, DC=2, deviceExtension__Active=7, DeviceObject=8, DeviceUsageTypePaging=1, Executive=0, IPC=7, Irp=9, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, UNLOADED=0] [L1798] RET, EXPR CdAudioDeviceControl(devobj, pirp) [L1798] status = CdAudioDeviceControl(devobj, pirp) [L1819] COND FALSE !(\read(we_should_unload)) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1825] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1826] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1833] COND TRUE pended == 1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1834] COND FALSE !(s == MPR3) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1841] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1842] COND TRUE status != -1 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1843] COND TRUE s != SKIP2 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1844] COND FALSE !(s != IPC) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1857] COND FALSE !(pended != 1) VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1869] COND TRUE status != 259 VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, devobj=8, Executive=0, IPC=7, irp=9, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, pirp__IoStatus__Status=3221225659, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=5, tmp_ndt_1=2, UNLOADED=0, we_should_unload=0] [L1871] CALL errorFn() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] [L59] reach_error() VAL [compFptr=0, compRegistered=1, customIrp=0, DC=2, DeviceUsageTypePaging=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=1, pirp=9, routine=0, s=7, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=5, UNLOADED=0] - UnprovableResult [Line: 1717]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 471 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 54.7s, OverallIterations: 109, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15111 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14895 mSDsluCounter, 324563 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264815 mSDsCounter, 653 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12559 IncrementalHoareTripleChecker+Invalid, 13212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 653 mSolverCounterUnsat, 59748 mSDtfsCounter, 12559 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5202 GetRequests, 4383 SyntacticMatches, 0 SemanticMatches, 819 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1062occurred in iteration=39, InterpolantAutomatonStates: 777, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 108 MinimizatonAttempts, 2659 StatesRemovedByMinimization, 73 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.7s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 5111 NumberOfCodeBlocks, 5111 NumberOfCodeBlocksAsserted, 109 NumberOfCheckSat, 4945 ConstructedInterpolants, 0 QuantifiedInterpolants, 11231 SizeOfPredicates, 350 NumberOfNonLiveVariables, 18323 ConjunctsInSsa, 763 ConjunctsInUnsatCore, 108 InterpolantComputations, 108 PerfectInterpolantSequences, 7/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-14 07:06:26,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample