./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.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-2.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 75fd132a1a39ad1f2927845122893235fdf65fe2225472c79a2e84525dcd60fe --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 07:04:57,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 07:04:57,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 07:04:57,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 07:04:57,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 07:04:57,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 07:04:57,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 07:04:57,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 07:04:57,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 07:04:57,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 07:04:57,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 07:04:57,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 07:04:57,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 07:04:57,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 07:04:57,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 07:04:57,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 07:04:57,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 07:04:57,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 07:04:57,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 07:04:57,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 07:04:57,202 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 07:04:57,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 07:04:57,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 07:04:57,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 07:04:57,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 07:04:57,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 07:04:57,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 07:04:57,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 07:04:57,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 07:04:57,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 07:04:57,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 07:04:57,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 07:04:57,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 07:04:57,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 07:04:57,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 07:04:57,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 07:04:57,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 07:04:57,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 07:04:57,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 07:04:57,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 07:04:57,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 07:04:57,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 07:04:57,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-14 07:04:57,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 07:04:57,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 07:04:57,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 07:04:57,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 07:04:57,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 07:04:57,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 07:04:57,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 07:04:57,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 07:04:57,259 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 07:04:57,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 07:04:57,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 07:04:57,261 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 07:04:57,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 07:04:57,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 07:04:57,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 07:04:57,261 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-14 07:04:57,262 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-14 07:04:57,262 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-14 07:04:57,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 07:04:57,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 07:04:57,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 07:04:57,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 07:04:57,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 07:04:57,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 07:04:57,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 07:04:57,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:04:57,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 07:04:57,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 07:04:57,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 07:04:57,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 07:04:57,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75fd132a1a39ad1f2927845122893235fdf65fe2225472c79a2e84525dcd60fe [2022-07-14 07:04:57,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 07:04:57,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 07:04:57,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 07:04:57,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 07:04:57,499 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 07:04:57,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c [2022-07-14 07:04:57,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61f35093/1b37d90f754d46529a737b05cf647c6d/FLAG6c2aeff13 [2022-07-14 07:04:58,039 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 07:04:58,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-2.c [2022-07-14 07:04:58,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61f35093/1b37d90f754d46529a737b05cf647c6d/FLAG6c2aeff13 [2022-07-14 07:04:58,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61f35093/1b37d90f754d46529a737b05cf647c6d [2022-07-14 07:04:58,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 07:04:58,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 07:04:58,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 07:04:58,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 07:04:58,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 07:04:58,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:04:58" (1/1) ... [2022-07-14 07:04:58,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf3cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:58, skipping insertion in model container [2022-07-14 07:04:58,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:04:58" (1/1) ... [2022-07-14 07:04:58,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 07:04:58,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 07:04:58,765 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-2.c[2073,2086] [2022-07-14 07:04:58,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:04:58,945 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 07:04:58,958 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-2.c[2073,2086] [2022-07-14 07:04:59,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:04:59,057 INFO L208 MainTranslator]: Completed translation [2022-07-14 07:04:59,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59 WrapperNode [2022-07-14 07:04:59,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 07:04:59,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 07:04:59,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 07:04:59,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 07:04:59,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,145 INFO L137 Inliner]: procedures = 41, calls = 107, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1581 [2022-07-14 07:04:59,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 07:04:59,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 07:04:59,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 07:04:59,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 07:04:59,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 07:04:59,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 07:04:59,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 07:04:59,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 07:04:59,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (1/1) ... [2022-07-14 07:04:59,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:04:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:04:59,245 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 07:04:59,269 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 07:04:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2022-07-14 07:04:59,287 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2022-07-14 07:04:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 07:04:59,287 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2022-07-14 07:04:59,288 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2022-07-14 07:04:59,288 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-07-14 07:04:59,288 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-07-14 07:04:59,288 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2022-07-14 07:04:59,288 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2022-07-14 07:04:59,288 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-14 07:04:59,288 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-14 07:04:59,289 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-14 07:04:59,290 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-14 07:04:59,290 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2022-07-14 07:04:59,290 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2022-07-14 07:04:59,290 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-07-14 07:04:59,290 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-07-14 07:04:59,290 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2022-07-14 07:04:59,290 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2022-07-14 07:04:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-14 07:04:59,291 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-14 07:04:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 07:04:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-14 07:04:59,291 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-14 07:04:59,291 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2022-07-14 07:04:59,291 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2022-07-14 07:04:59,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 07:04:59,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 07:04:59,292 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2022-07-14 07:04:59,292 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2022-07-14 07:04:59,553 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 07:04:59,555 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 07:04:59,629 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,666 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-07-14 07:04:59,667 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-07-14 07:04:59,725 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,738 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-14 07:04:59,739 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-14 07:04:59,744 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,745 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,750 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,762 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,778 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,782 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,786 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:00,430 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0; [2022-07-14 07:05:00,431 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2022-07-14 07:05:00,431 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2022-07-14 07:05:00,431 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2022-07-14 07:05:00,431 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2022-07-14 07:05:00,431 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2022-07-14 07:05:00,431 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2022-07-14 07:05:00,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2022-07-14 07:05:00,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2022-07-14 07:05:00,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2022-07-14 07:05:00,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2022-07-14 07:05:00,432 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-14 07:05:00,433 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-14 07:05:00,433 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2022-07-14 07:05:00,433 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2022-07-14 07:05:00,480 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 07:05:00,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 07:05:00,489 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 07:05:00,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:00 BoogieIcfgContainer [2022-07-14 07:05:00,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 07:05:00,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 07:05:00,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 07:05:00,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 07:05:00,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 07:04:58" (1/3) ... [2022-07-14 07:05:00,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d571d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:05:00, skipping insertion in model container [2022-07-14 07:05:00,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59" (2/3) ... [2022-07-14 07:05:00,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d571d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 07:05:00, skipping insertion in model container [2022-07-14 07:05:00,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:00" (3/3) ... [2022-07-14 07:05:00,502 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-2.c [2022-07-14 07:05:00,514 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 07:05:00,515 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 07:05:00,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 07:05:00,591 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@4cba5569, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@47c05626 [2022-07-14 07:05:00,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 07:05:00,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 469 states, 367 states have (on average 1.5095367847411445) internal successors, (554), 386 states have internal predecessors, (554), 86 states have call successors, (86), 13 states have call predecessors, (86), 13 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2022-07-14 07:05:00,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 07:05:00,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:00,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:00,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:00,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:00,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937654, now seen corresponding path program 1 times [2022-07-14 07:05:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:00,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015064727] [2022-07-14 07:05:00,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:00,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,802 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 07:05:00,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:00,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015064727] [2022-07-14 07:05:00,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015064727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:00,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:00,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:00,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411297137] [2022-07-14 07:05:00,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:00,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:00,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:00,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:00,841 INFO L87 Difference]: Start difference. First operand has 469 states, 367 states have (on average 1.5095367847411445) internal successors, (554), 386 states have internal predecessors, (554), 86 states have call successors, (86), 13 states have call predecessors, (86), 13 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) 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 07:05:01,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,010 INFO L93 Difference]: Finished difference Result 621 states and 922 transitions. [2022-07-14 07:05:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,013 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 07:05:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,032 INFO L225 Difference]: With dead ends: 621 [2022-07-14 07:05:01,036 INFO L226 Difference]: Without dead ends: 617 [2022-07-14 07:05:01,038 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 07:05:01,041 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 690 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 946 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 07:05:01,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 946 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:01,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-07-14 07:05:01,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 601. [2022-07-14 07:05:01,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 485 states have (on average 1.4721649484536083) internal successors, (714), 492 states have internal predecessors, (714), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:01,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 901 transitions. [2022-07-14 07:05:01,142 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 901 transitions. Word has length 8 [2022-07-14 07:05:01,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,144 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 901 transitions. [2022-07-14 07:05:01,144 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 07:05:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 901 transitions. [2022-07-14 07:05:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 07:05:01,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 07:05:01,146 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128949, now seen corresponding path program 1 times [2022-07-14 07:05:01,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369640147] [2022-07-14 07:05:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,208 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 07:05:01,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369640147] [2022-07-14 07:05:01,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369640147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056875216] [2022-07-14 07:05:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,213 INFO L87 Difference]: Start difference. First operand 601 states and 901 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 07:05:01,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,254 INFO L93 Difference]: Finished difference Result 603 states and 901 transitions. [2022-07-14 07:05:01,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,255 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 07:05:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,263 INFO L225 Difference]: With dead ends: 603 [2022-07-14 07:05:01,264 INFO L226 Difference]: Without dead ends: 603 [2022-07-14 07:05:01,267 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 07:05:01,268 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 384 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 942 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:01,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-07-14 07:05:01,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 601. [2022-07-14 07:05:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 485 states have (on average 1.4701030927835053) internal successors, (713), 492 states have internal predecessors, (713), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:01,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 900 transitions. [2022-07-14 07:05:01,299 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 900 transitions. Word has length 9 [2022-07-14 07:05:01,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,300 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 900 transitions. [2022-07-14 07:05:01,300 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 07:05:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 900 transitions. [2022-07-14 07:05:01,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 07:05:01,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 07:05:01,301 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 929451779, now seen corresponding path program 1 times [2022-07-14 07:05:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435109224] [2022-07-14 07:05:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,358 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 07:05:01,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435109224] [2022-07-14 07:05:01,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435109224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:05:01,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436475833] [2022-07-14 07:05:01,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,362 INFO L87 Difference]: Start difference. First operand 601 states and 900 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 07:05:01,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,480 INFO L93 Difference]: Finished difference Result 600 states and 899 transitions. [2022-07-14 07:05:01,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,481 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 07:05:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,487 INFO L225 Difference]: With dead ends: 600 [2022-07-14 07:05:01,487 INFO L226 Difference]: Without dead ends: 597 [2022-07-14 07:05:01,489 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 07:05:01,493 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 416 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 847 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:01,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-07-14 07:05:01,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 591. [2022-07-14 07:05:01,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 476 states have (on average 1.4516806722689075) internal successors, (691), 482 states have internal predecessors, (691), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 878 transitions. [2022-07-14 07:05:01,522 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 878 transitions. Word has length 9 [2022-07-14 07:05:01,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,522 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 878 transitions. [2022-07-14 07:05:01,523 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 07:05:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 878 transitions. [2022-07-14 07:05:01,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 07:05:01,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 07:05:01,524 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618303, now seen corresponding path program 1 times [2022-07-14 07:05:01,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389855558] [2022-07-14 07:05:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,568 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 07:05:01,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389855558] [2022-07-14 07:05:01,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389855558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123822792] [2022-07-14 07:05:01,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,571 INFO L87 Difference]: Start difference. First operand 591 states and 878 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 07:05:01,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,638 INFO L93 Difference]: Finished difference Result 594 states and 880 transitions. [2022-07-14 07:05:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,639 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 07:05:01,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,644 INFO L225 Difference]: With dead ends: 594 [2022-07-14 07:05:01,644 INFO L226 Difference]: Without dead ends: 591 [2022-07-14 07:05:01,645 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 07:05:01,650 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 0 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1329 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 07:05:01,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1329 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:01,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-14 07:05:01,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2022-07-14 07:05:01,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 476 states have (on average 1.449579831932773) internal successors, (690), 482 states have internal predecessors, (690), 93 states have call successors, (93), 18 states have call predecessors, (93), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2022-07-14 07:05:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 877 transitions. [2022-07-14 07:05:01,674 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 877 transitions. Word has length 13 [2022-07-14 07:05:01,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,674 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 877 transitions. [2022-07-14 07:05:01,674 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 07:05:01,675 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 877 transitions. [2022-07-14 07:05:01,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 07:05:01,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 07:05:01,676 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1712839995, now seen corresponding path program 1 times [2022-07-14 07:05:01,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668617824] [2022-07-14 07:05:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,710 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 07:05:01,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668617824] [2022-07-14 07:05:01,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668617824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844113812] [2022-07-14 07:05:01,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,713 INFO L87 Difference]: Start difference. First operand 591 states and 877 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 07:05:01,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,865 INFO L93 Difference]: Finished difference Result 835 states and 1220 transitions. [2022-07-14 07:05:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,866 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 07:05:01,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,871 INFO L225 Difference]: With dead ends: 835 [2022-07-14 07:05:01,871 INFO L226 Difference]: Without dead ends: 834 [2022-07-14 07:05:01,871 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 07:05:01,872 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 564 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 1025 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 07:05:01,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 1025 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:01,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-07-14 07:05:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 791. [2022-07-14 07:05:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 649 states have (on average 1.4206471494607087) internal successors, (922), 641 states have internal predecessors, (922), 106 states have call successors, (106), 31 states have call predecessors, (106), 35 states have return successors, (136), 122 states have call predecessors, (136), 96 states have call successors, (136) [2022-07-14 07:05:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1164 transitions. [2022-07-14 07:05:01,913 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1164 transitions. Word has length 15 [2022-07-14 07:05:01,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,913 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1164 transitions. [2022-07-14 07:05:01,913 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 07:05:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1164 transitions. [2022-07-14 07:05:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 07:05:01,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 07:05:01,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1752786185, now seen corresponding path program 1 times [2022-07-14 07:05:01,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330827259] [2022-07-14 07:05:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,986 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 07:05:01,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330827259] [2022-07-14 07:05:01,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330827259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886047677] [2022-07-14 07:05:01,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,989 INFO L87 Difference]: Start difference. First operand 791 states and 1164 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 07:05:02,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:02,016 INFO L93 Difference]: Finished difference Result 867 states and 1260 transitions. [2022-07-14 07:05:02,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:02,016 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 07:05:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:02,020 INFO L225 Difference]: With dead ends: 867 [2022-07-14 07:05:02,020 INFO L226 Difference]: Without dead ends: 867 [2022-07-14 07:05:02,021 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 07:05:02,022 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 601 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 864 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 07:05:02,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 864 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:02,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-07-14 07:05:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 839. [2022-07-14 07:05:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 692 states have (on average 1.439306358381503) internal successors, (996), 695 states have internal predecessors, (996), 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 07:05:02,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1228 transitions. [2022-07-14 07:05:02,044 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1228 transitions. Word has length 19 [2022-07-14 07:05:02,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:02,045 INFO L495 AbstractCegarLoop]: Abstraction has 839 states and 1228 transitions. [2022-07-14 07:05:02,045 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 07:05:02,045 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1228 transitions. [2022-07-14 07:05:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 07:05:02,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:02,046 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 07:05:02,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 07:05:02,047 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:02,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:02,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1868596178, now seen corresponding path program 1 times [2022-07-14 07:05:02,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:02,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435607052] [2022-07-14 07:05:02,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:02,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,072 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 07:05:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435607052] [2022-07-14 07:05:02,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435607052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:02,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809014696] [2022-07-14 07:05:02,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:02,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:02,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:02,075 INFO L87 Difference]: Start difference. First operand 839 states and 1228 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 07:05:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:02,190 INFO L93 Difference]: Finished difference Result 1332 states and 2008 transitions. [2022-07-14 07:05:02,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:02,190 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 07:05:02,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:02,196 INFO L225 Difference]: With dead ends: 1332 [2022-07-14 07:05:02,196 INFO L226 Difference]: Without dead ends: 1332 [2022-07-14 07:05:02,196 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 07:05:02,197 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 336 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1616 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 07:05:02,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1616 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:02,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2022-07-14 07:05:02,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1027. [2022-07-14 07:05:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 848 states have (on average 1.4375) internal successors, (1219), 849 states have internal predecessors, (1219), 122 states have call successors, (122), 47 states have call predecessors, (122), 56 states have return successors, (205), 130 states have call predecessors, (205), 115 states have call successors, (205) [2022-07-14 07:05:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1546 transitions. [2022-07-14 07:05:02,228 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1546 transitions. Word has length 21 [2022-07-14 07:05:02,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:02,228 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1546 transitions. [2022-07-14 07:05:02,228 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 07:05:02,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1546 transitions. [2022-07-14 07:05:02,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 07:05:02,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:02,229 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 07:05:02,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 07:05:02,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:02,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:02,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1853359414, now seen corresponding path program 1 times [2022-07-14 07:05:02,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:02,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902022639] [2022-07-14 07:05:02,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:02,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,344 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 07:05:02,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902022639] [2022-07-14 07:05:02,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902022639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:02,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151677622] [2022-07-14 07:05:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:02,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:02,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:02,346 INFO L87 Difference]: Start difference. First operand 1027 states and 1546 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 07:05:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:02,720 INFO L93 Difference]: Finished difference Result 1060 states and 1579 transitions. [2022-07-14 07:05:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:02,721 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 07:05:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:02,726 INFO L225 Difference]: With dead ends: 1060 [2022-07-14 07:05:02,726 INFO L226 Difference]: Without dead ends: 1060 [2022-07-14 07:05:02,726 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 07:05:02,727 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 1024 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:02,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 868 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:02,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-07-14 07:05:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1009. [2022-07-14 07:05:02,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 833 states have (on average 1.4309723889555823) internal successors, (1192), 834 states have internal predecessors, (1192), 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 07:05:02,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1510 transitions. [2022-07-14 07:05:02,753 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1510 transitions. Word has length 22 [2022-07-14 07:05:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:02,753 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1510 transitions. [2022-07-14 07:05:02,753 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 07:05:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1510 transitions. [2022-07-14 07:05:02,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 07:05:02,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:02,756 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 07:05:02,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 07:05:02,757 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:02,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:02,757 INFO L85 PathProgramCache]: Analyzing trace with hash -401986613, now seen corresponding path program 1 times [2022-07-14 07:05:02,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:02,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827144245] [2022-07-14 07:05:02,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:02,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,806 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 07:05:02,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827144245] [2022-07-14 07:05:02,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827144245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:02,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938131356] [2022-07-14 07:05:02,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:02,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:02,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:02,808 INFO L87 Difference]: Start difference. First operand 1009 states and 1510 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 07:05:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:02,853 INFO L93 Difference]: Finished difference Result 1008 states and 1507 transitions. [2022-07-14 07:05:02,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:02,854 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 07:05:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:02,865 INFO L225 Difference]: With dead ends: 1008 [2022-07-14 07:05:02,865 INFO L226 Difference]: Without dead ends: 1008 [2022-07-14 07:05:02,865 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 07:05:02,866 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 22 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1248 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 07:05:02,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1248 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-14 07:05:02,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2022-07-14 07:05:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 833 states have (on average 1.4285714285714286) internal successors, (1190), 833 states have internal predecessors, (1190), 118 states have call successors, (118), 44 states have call predecessors, (118), 56 states have return successors, (199), 130 states have call predecessors, (199), 112 states have call successors, (199) [2022-07-14 07:05:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1507 transitions. [2022-07-14 07:05:02,890 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1507 transitions. Word has length 23 [2022-07-14 07:05:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:02,891 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1507 transitions. [2022-07-14 07:05:02,891 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 07:05:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1507 transitions. [2022-07-14 07:05:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:05:02,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:02,894 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 07:05:02,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 07:05:02,894 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:02,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:02,895 INFO L85 PathProgramCache]: Analyzing trace with hash -411805955, now seen corresponding path program 1 times [2022-07-14 07:05:02,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:02,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842283067] [2022-07-14 07:05:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:02,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:05:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,939 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 07:05:02,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842283067] [2022-07-14 07:05:02,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842283067] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:02,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424765030] [2022-07-14 07:05:02,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:02,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:02,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:02,941 INFO L87 Difference]: Start difference. First operand 1008 states and 1507 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 07:05:03,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:03,170 INFO L93 Difference]: Finished difference Result 1305 states and 1930 transitions. [2022-07-14 07:05:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:03,171 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 07:05:03,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:03,176 INFO L225 Difference]: With dead ends: 1305 [2022-07-14 07:05:03,176 INFO L226 Difference]: Without dead ends: 1305 [2022-07-14 07:05:03,177 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 07:05:03,177 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 768 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:03,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1390 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:03,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-07-14 07:05:03,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1065. [2022-07-14 07:05:03,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 881 states have (on average 1.41316685584563) internal successors, (1245), 886 states have internal predecessors, (1245), 115 states have call successors, (115), 49 states have call predecessors, (115), 68 states have return successors, (178), 129 states have call predecessors, (178), 109 states have call successors, (178) [2022-07-14 07:05:03,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1538 transitions. [2022-07-14 07:05:03,205 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1538 transitions. Word has length 36 [2022-07-14 07:05:03,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:03,205 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1538 transitions. [2022-07-14 07:05:03,205 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 07:05:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1538 transitions. [2022-07-14 07:05:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:03,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:03,208 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 07:05:03,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 07:05:03,209 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:03,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:03,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2014058946, now seen corresponding path program 1 times [2022-07-14 07:05:03,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:03,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761580156] [2022-07-14 07:05:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:03,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 07:05:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,240 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 07:05:03,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:03,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761580156] [2022-07-14 07:05:03,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761580156] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:03,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:03,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:03,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926133179] [2022-07-14 07:05:03,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:03,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:03,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:03,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:03,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:03,242 INFO L87 Difference]: Start difference. First operand 1065 states and 1538 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 07:05:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:03,508 INFO L93 Difference]: Finished difference Result 836 states and 1213 transitions. [2022-07-14 07:05:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:03,509 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 07:05:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:03,512 INFO L225 Difference]: With dead ends: 836 [2022-07-14 07:05:03,512 INFO L226 Difference]: Without dead ends: 836 [2022-07-14 07:05:03,513 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 07:05:03,513 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 248 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:03,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1763 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:03,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-07-14 07:05:03,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 797. [2022-07-14 07:05:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 659 states have (on average 1.4142640364188164) internal successors, (932), 666 states have internal predecessors, (932), 93 states have call successors, (93), 33 states have call predecessors, (93), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-07-14 07:05:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1146 transitions. [2022-07-14 07:05:03,532 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1146 transitions. Word has length 35 [2022-07-14 07:05:03,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:03,532 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1146 transitions. [2022-07-14 07:05:03,533 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 07:05:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1146 transitions. [2022-07-14 07:05:03,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-14 07:05:03,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:03,536 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 07:05:03,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 07:05:03,536 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:03,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:03,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1008894196, now seen corresponding path program 1 times [2022-07-14 07:05:03,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:03,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131038497] [2022-07-14 07:05:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:03,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,580 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 07:05:03,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:03,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131038497] [2022-07-14 07:05:03,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131038497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:03,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:03,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:03,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907651178] [2022-07-14 07:05:03,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:03,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:03,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:03,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:03,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:03,582 INFO L87 Difference]: Start difference. First operand 797 states and 1146 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 07:05:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:03,809 INFO L93 Difference]: Finished difference Result 813 states and 1164 transitions. [2022-07-14 07:05:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:03,809 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 07:05:03,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:03,813 INFO L225 Difference]: With dead ends: 813 [2022-07-14 07:05:03,813 INFO L226 Difference]: Without dead ends: 813 [2022-07-14 07:05:03,813 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 07:05:03,814 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 690 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:03,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 1099 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-07-14 07:05:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 797. [2022-07-14 07:05:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 659 states have (on average 1.4112291350531108) internal successors, (930), 666 states have internal predecessors, (930), 93 states have call successors, (93), 33 states have call predecessors, (93), 44 states have return successors, (121), 97 states have call predecessors, (121), 87 states have call successors, (121) [2022-07-14 07:05:03,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1144 transitions. [2022-07-14 07:05:03,831 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1144 transitions. Word has length 32 [2022-07-14 07:05:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:03,831 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1144 transitions. [2022-07-14 07:05:03,831 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 07:05:03,831 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1144 transitions. [2022-07-14 07:05:03,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:05:03,833 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:03,834 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 07:05:03,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 07:05:03,834 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:03,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:03,835 INFO L85 PathProgramCache]: Analyzing trace with hash -509252101, now seen corresponding path program 1 times [2022-07-14 07:05:03,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:03,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387658630] [2022-07-14 07:05:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:03,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,880 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 07:05:03,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:03,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387658630] [2022-07-14 07:05:03,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387658630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:03,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:03,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:03,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126396435] [2022-07-14 07:05:03,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:03,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:03,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:03,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:03,882 INFO L87 Difference]: Start difference. First operand 797 states and 1144 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 07:05:04,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:04,354 INFO L93 Difference]: Finished difference Result 706 states and 1022 transitions. [2022-07-14 07:05:04,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:04,354 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 07:05:04,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:04,357 INFO L225 Difference]: With dead ends: 706 [2022-07-14 07:05:04,358 INFO L226 Difference]: Without dead ends: 706 [2022-07-14 07:05:04,358 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 07:05:04,359 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 843 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:04,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1645 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-07-14 07:05:04,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 665. [2022-07-14 07:05:04,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 548 states have (on average 1.4087591240875912) internal successors, (772), 554 states have internal predecessors, (772), 85 states have call successors, (85), 26 states have call predecessors, (85), 31 states have return successors, (96), 84 states have call predecessors, (96), 79 states have call successors, (96) [2022-07-14 07:05:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 953 transitions. [2022-07-14 07:05:04,378 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 953 transitions. Word has length 36 [2022-07-14 07:05:04,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:04,380 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 953 transitions. [2022-07-14 07:05:04,380 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 07:05:04,380 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 953 transitions. [2022-07-14 07:05:04,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:05:04,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:04,382 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 07:05:04,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 07:05:04,382 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:04,383 INFO L85 PathProgramCache]: Analyzing trace with hash 138801863, now seen corresponding path program 1 times [2022-07-14 07:05:04,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:04,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452707115] [2022-07-14 07:05:04,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:04,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,413 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 07:05:04,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:04,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452707115] [2022-07-14 07:05:04,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452707115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:04,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:04,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963612750] [2022-07-14 07:05:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:04,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:04,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:04,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:04,416 INFO L87 Difference]: Start difference. First operand 665 states and 953 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 07:05:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:04,481 INFO L93 Difference]: Finished difference Result 811 states and 1155 transitions. [2022-07-14 07:05:04,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:04,482 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 07:05:04,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:04,485 INFO L225 Difference]: With dead ends: 811 [2022-07-14 07:05:04,485 INFO L226 Difference]: Without dead ends: 811 [2022-07-14 07:05:04,485 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 07:05:04,486 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 132 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1357 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 07:05:04,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1357 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-07-14 07:05:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 713. [2022-07-14 07:05:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 592 states have (on average 1.385135135135135) internal successors, (820), 591 states have internal predecessors, (820), 85 states have call successors, (85), 26 states have call predecessors, (85), 35 states have return successors, (107), 95 states have call predecessors, (107), 79 states have call successors, (107) [2022-07-14 07:05:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1012 transitions. [2022-07-14 07:05:04,535 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1012 transitions. Word has length 34 [2022-07-14 07:05:04,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:04,535 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 1012 transitions. [2022-07-14 07:05:04,535 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 07:05:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1012 transitions. [2022-07-14 07:05:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:05:04,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:04,538 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 07:05:04,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 07:05:04,538 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:04,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:04,538 INFO L85 PathProgramCache]: Analyzing trace with hash -298326267, now seen corresponding path program 1 times [2022-07-14 07:05:04,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:04,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36353009] [2022-07-14 07:05:04,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:04,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,577 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 07:05:04,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:04,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36353009] [2022-07-14 07:05:04,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36353009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:04,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:04,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:04,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640350394] [2022-07-14 07:05:04,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:04,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:04,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:04,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:04,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:04,579 INFO L87 Difference]: Start difference. First operand 713 states and 1012 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 07:05:04,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:04,838 INFO L93 Difference]: Finished difference Result 694 states and 982 transitions. [2022-07-14 07:05:04,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:04,838 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 07:05:04,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:04,846 INFO L225 Difference]: With dead ends: 694 [2022-07-14 07:05:04,846 INFO L226 Difference]: Without dead ends: 694 [2022-07-14 07:05:04,848 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 07:05:04,849 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 670 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:04,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1099 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-07-14 07:05:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2022-07-14 07:05:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 575 states have (on average 1.3895652173913045) internal successors, (799), 581 states have internal predecessors, (799), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:05:04,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 982 transitions. [2022-07-14 07:05:04,874 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 982 transitions. Word has length 34 [2022-07-14 07:05:04,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:04,874 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 982 transitions. [2022-07-14 07:05:04,875 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 07:05:04,875 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 982 transitions. [2022-07-14 07:05:04,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:04,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:04,877 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 07:05:04,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 07:05:04,877 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:04,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:04,877 INFO L85 PathProgramCache]: Analyzing trace with hash 452395465, now seen corresponding path program 1 times [2022-07-14 07:05:04,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:04,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269546434] [2022-07-14 07:05:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:04,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,941 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 07:05:04,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:04,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269546434] [2022-07-14 07:05:04,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269546434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:04,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:04,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:04,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699674050] [2022-07-14 07:05:04,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:04,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:04,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:04,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:04,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:04,945 INFO L87 Difference]: Start difference. First operand 694 states and 982 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 07:05:05,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,225 INFO L93 Difference]: Finished difference Result 788 states and 1120 transitions. [2022-07-14 07:05:05,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:05,226 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 07:05:05,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,229 INFO L225 Difference]: With dead ends: 788 [2022-07-14 07:05:05,229 INFO L226 Difference]: Without dead ends: 788 [2022-07-14 07:05:05,230 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 07:05:05,230 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 742 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:05,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 1192 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-07-14 07:05:05,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 696. [2022-07-14 07:05:05,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 577 states have (on average 1.3882149046793761) internal successors, (801), 583 states have internal predecessors, (801), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:05:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 984 transitions. [2022-07-14 07:05:05,251 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 984 transitions. Word has length 35 [2022-07-14 07:05:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,252 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 984 transitions. [2022-07-14 07:05:05,252 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 07:05:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 984 transitions. [2022-07-14 07:05:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:05,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,254 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 07:05:05,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 07:05:05,254 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,255 INFO L85 PathProgramCache]: Analyzing trace with hash 452672295, now seen corresponding path program 1 times [2022-07-14 07:05:05,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904377307] [2022-07-14 07:05:05,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,297 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 07:05:05,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:05,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904377307] [2022-07-14 07:05:05,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904377307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:05,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:05,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000405598] [2022-07-14 07:05:05,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:05,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:05,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:05,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:05,300 INFO L87 Difference]: Start difference. First operand 696 states and 984 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 07:05:05,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,365 INFO L93 Difference]: Finished difference Result 706 states and 994 transitions. [2022-07-14 07:05:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:05,366 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 07:05:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,369 INFO L225 Difference]: With dead ends: 706 [2022-07-14 07:05:05,369 INFO L226 Difference]: Without dead ends: 679 [2022-07-14 07:05:05,369 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 07:05:05,370 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 38 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3193 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 07:05:05,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3193 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-07-14 07:05:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-07-14 07:05:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 560 states have (on average 1.394642857142857) internal successors, (781), 566 states have internal predecessors, (781), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:05:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 964 transitions. [2022-07-14 07:05:05,386 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 964 transitions. Word has length 35 [2022-07-14 07:05:05,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,386 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 964 transitions. [2022-07-14 07:05:05,386 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 07:05:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 964 transitions. [2022-07-14 07:05:05,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 07:05:05,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,388 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 07:05:05,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 07:05:05,388 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1898283434, now seen corresponding path program 1 times [2022-07-14 07:05:05,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712094479] [2022-07-14 07:05:05,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,418 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 07:05:05,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:05,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712094479] [2022-07-14 07:05:05,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712094479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:05,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:05,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:05,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756559972] [2022-07-14 07:05:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:05,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:05,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:05,419 INFO L87 Difference]: Start difference. First operand 679 states and 964 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 07:05:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,640 INFO L93 Difference]: Finished difference Result 712 states and 1022 transitions. [2022-07-14 07:05:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:05,641 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 07:05:05,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,644 INFO L225 Difference]: With dead ends: 712 [2022-07-14 07:05:05,644 INFO L226 Difference]: Without dead ends: 710 [2022-07-14 07:05:05,644 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 07:05:05,645 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 150 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:05,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1540 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:05,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-14 07:05:05,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 692. [2022-07-14 07:05:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 573 states have (on average 1.3891797556719023) internal successors, (796), 579 states have internal predecessors, (796), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:05:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 979 transitions. [2022-07-14 07:05:05,659 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 979 transitions. Word has length 37 [2022-07-14 07:05:05,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,660 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 979 transitions. [2022-07-14 07:05:05,660 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 07:05:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 979 transitions. [2022-07-14 07:05:05,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-14 07:05:05,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,662 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 07:05:05,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 07:05:05,662 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1374369595, now seen corresponding path program 1 times [2022-07-14 07:05:05,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970797906] [2022-07-14 07:05:05,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,728 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 07:05:05,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:05,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970797906] [2022-07-14 07:05:05,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970797906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:05,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:05,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:05,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911533369] [2022-07-14 07:05:05,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:05,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:05,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:05,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:05,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:05,730 INFO L87 Difference]: Start difference. First operand 692 states and 979 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 07:05:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,131 INFO L93 Difference]: Finished difference Result 710 states and 1019 transitions. [2022-07-14 07:05:06,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:06,132 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 07:05:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,135 INFO L225 Difference]: With dead ends: 710 [2022-07-14 07:05:06,135 INFO L226 Difference]: Without dead ends: 710 [2022-07-14 07:05:06,135 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 07:05:06,136 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 745 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1870 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-14 07:05:06,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 692. [2022-07-14 07:05:06,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 573 states have (on average 1.387434554973822) internal successors, (795), 579 states have internal predecessors, (795), 85 states have call successors, (85), 26 states have call predecessors, (85), 33 states have return successors, (98), 86 states have call predecessors, (98), 79 states have call successors, (98) [2022-07-14 07:05:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 978 transitions. [2022-07-14 07:05:06,151 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 978 transitions. Word has length 39 [2022-07-14 07:05:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,151 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 978 transitions. [2022-07-14 07:05:06,151 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 07:05:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 978 transitions. [2022-07-14 07:05:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-14 07:05:06,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,153 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 07:05:06,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 07:05:06,154 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,154 INFO L85 PathProgramCache]: Analyzing trace with hash -31152669, now seen corresponding path program 1 times [2022-07-14 07:05:06,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28776233] [2022-07-14 07:05:06,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,212 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 07:05:06,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28776233] [2022-07-14 07:05:06,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28776233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:06,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673667273] [2022-07-14 07:05:06,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:06,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:06,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:06,214 INFO L87 Difference]: Start difference. First operand 692 states and 978 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 07:05:06,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,538 INFO L93 Difference]: Finished difference Result 728 states and 1040 transitions. [2022-07-14 07:05:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:06,539 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 07:05:06,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,542 INFO L225 Difference]: With dead ends: 728 [2022-07-14 07:05:06,542 INFO L226 Difference]: Without dead ends: 699 [2022-07-14 07:05:06,542 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 07:05:06,543 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 158 mSDsluCounter, 3340 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3958 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:06,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-07-14 07:05:06,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 683. [2022-07-14 07:05:06,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 566 states have (on average 1.3692579505300353) internal successors, (775), 572 states have internal predecessors, (775), 83 states have call successors, (83), 26 states have call predecessors, (83), 33 states have return successors, (96), 84 states have call predecessors, (96), 77 states have call successors, (96) [2022-07-14 07:05:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 954 transitions. [2022-07-14 07:05:06,566 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 954 transitions. Word has length 40 [2022-07-14 07:05:06,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,566 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 954 transitions. [2022-07-14 07:05:06,566 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 07:05:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 954 transitions. [2022-07-14 07:05:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:06,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,568 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 07:05:06,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-14 07:05:06,569 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash 128291846, now seen corresponding path program 1 times [2022-07-14 07:05:06,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446830571] [2022-07-14 07:05:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 07:05:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,611 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 07:05:06,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446830571] [2022-07-14 07:05:06,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446830571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:06,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390116501] [2022-07-14 07:05:06,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:06,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:06,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:06,614 INFO L87 Difference]: Start difference. First operand 683 states and 954 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 07:05:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,991 INFO L93 Difference]: Finished difference Result 678 states and 964 transitions. [2022-07-14 07:05:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:06,992 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 07:05:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,995 INFO L225 Difference]: With dead ends: 678 [2022-07-14 07:05:06,995 INFO L226 Difference]: Without dead ends: 678 [2022-07-14 07:05:06,995 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 07:05:06,996 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 252 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1790 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:06,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-07-14 07:05:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 662. [2022-07-14 07:05:07,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 548 states have (on average 1.364963503649635) internal successors, (748), 553 states have internal predecessors, (748), 82 states have call successors, (82), 26 states have call predecessors, (82), 31 states have return successors, (94), 82 states have call predecessors, (94), 77 states have call successors, (94) [2022-07-14 07:05:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 924 transitions. [2022-07-14 07:05:07,011 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 924 transitions. Word has length 43 [2022-07-14 07:05:07,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:07,012 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 924 transitions. [2022-07-14 07:05:07,012 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 07:05:07,012 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 924 transitions. [2022-07-14 07:05:07,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:07,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:07,014 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 07:05:07,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-14 07:05:07,014 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:07,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash -37716100, now seen corresponding path program 1 times [2022-07-14 07:05:07,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:07,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391526832] [2022-07-14 07:05:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,158 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 07:05:07,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:07,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391526832] [2022-07-14 07:05:07,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391526832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:07,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:07,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:07,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557017195] [2022-07-14 07:05:07,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:07,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:07,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:07,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:07,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:07,161 INFO L87 Difference]: Start difference. First operand 662 states and 924 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 07:05:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:07,830 INFO L93 Difference]: Finished difference Result 689 states and 975 transitions. [2022-07-14 07:05:07,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:07,832 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 07:05:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:07,835 INFO L225 Difference]: With dead ends: 689 [2022-07-14 07:05:07,835 INFO L226 Difference]: Without dead ends: 676 [2022-07-14 07:05:07,835 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 07:05:07,836 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 98 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4437 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:07,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4437 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2022-07-14 07:05:07,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 660. [2022-07-14 07:05:07,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 547 states have (on average 1.363802559414991) internal successors, (746), 552 states have internal predecessors, (746), 81 states have call successors, (81), 26 states have call predecessors, (81), 31 states have return successors, (93), 81 states have call predecessors, (93), 76 states have call successors, (93) [2022-07-14 07:05:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 920 transitions. [2022-07-14 07:05:07,863 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 920 transitions. Word has length 44 [2022-07-14 07:05:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:07,864 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 920 transitions. [2022-07-14 07:05:07,864 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 07:05:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 920 transitions. [2022-07-14 07:05:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:07,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:07,866 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 07:05:07,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-14 07:05:07,867 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:07,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:07,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1983772567, now seen corresponding path program 1 times [2022-07-14 07:05:07,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:07,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135934879] [2022-07-14 07:05:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:07,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,011 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 07:05:08,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:08,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135934879] [2022-07-14 07:05:08,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135934879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:08,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:08,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:08,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793825580] [2022-07-14 07:05:08,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:08,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:08,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:08,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:08,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:08,015 INFO L87 Difference]: Start difference. First operand 660 states and 920 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 07:05:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:08,682 INFO L93 Difference]: Finished difference Result 686 states and 970 transitions. [2022-07-14 07:05:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:08,682 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 07:05:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:08,685 INFO L225 Difference]: With dead ends: 686 [2022-07-14 07:05:08,685 INFO L226 Difference]: Without dead ends: 673 [2022-07-14 07:05:08,685 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 07:05:08,686 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 98 mSDsluCounter, 3786 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:08,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 4386 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:08,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-07-14 07:05:08,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 657. [2022-07-14 07:05:08,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 545 states have (on average 1.363302752293578) internal successors, (743), 550 states have internal predecessors, (743), 80 states have call successors, (80), 26 states have call predecessors, (80), 31 states have return successors, (92), 80 states have call predecessors, (92), 75 states have call successors, (92) [2022-07-14 07:05:08,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 915 transitions. [2022-07-14 07:05:08,701 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 915 transitions. Word has length 43 [2022-07-14 07:05:08,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:08,701 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 915 transitions. [2022-07-14 07:05:08,701 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 07:05:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 915 transitions. [2022-07-14 07:05:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:08,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:08,703 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 07:05:08,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-14 07:05:08,703 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:08,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash 724634571, now seen corresponding path program 1 times [2022-07-14 07:05:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:08,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724890387] [2022-07-14 07:05:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,824 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 07:05:08,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:08,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724890387] [2022-07-14 07:05:08,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724890387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:08,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:08,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:08,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476812565] [2022-07-14 07:05:08,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:08,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:08,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:08,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:08,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:08,828 INFO L87 Difference]: Start difference. First operand 657 states and 915 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 07:05:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:09,691 INFO L93 Difference]: Finished difference Result 706 states and 990 transitions. [2022-07-14 07:05:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:09,692 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 07:05:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:09,695 INFO L225 Difference]: With dead ends: 706 [2022-07-14 07:05:09,695 INFO L226 Difference]: Without dead ends: 689 [2022-07-14 07:05:09,695 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 07:05:09,695 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 244 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:09,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 5102 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 07:05:09,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-07-14 07:05:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 655. [2022-07-14 07:05:09,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 544 states have (on average 1.3621323529411764) internal successors, (741), 549 states have internal predecessors, (741), 79 states have call successors, (79), 26 states have call predecessors, (79), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-07-14 07:05:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 911 transitions. [2022-07-14 07:05:09,709 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 911 transitions. Word has length 47 [2022-07-14 07:05:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:09,709 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 911 transitions. [2022-07-14 07:05:09,709 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 07:05:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 911 transitions. [2022-07-14 07:05:09,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:09,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:09,711 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 07:05:09,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-14 07:05:09,712 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:09,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1637865694, now seen corresponding path program 1 times [2022-07-14 07:05:09,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:09,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853978051] [2022-07-14 07:05:09,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:09,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,835 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 07:05:09,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:09,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853978051] [2022-07-14 07:05:09,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853978051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:09,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:09,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:09,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651672429] [2022-07-14 07:05:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:09,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:09,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:09,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:09,839 INFO L87 Difference]: Start difference. First operand 655 states and 911 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 07:05:10,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:10,618 INFO L93 Difference]: Finished difference Result 704 states and 986 transitions. [2022-07-14 07:05:10,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:10,619 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 07:05:10,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:10,622 INFO L225 Difference]: With dead ends: 704 [2022-07-14 07:05:10,622 INFO L226 Difference]: Without dead ends: 686 [2022-07-14 07:05:10,622 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 07:05:10,623 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 259 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 4624 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:10,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 4624 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:10,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-07-14 07:05:10,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 654. [2022-07-14 07:05:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 543 states have (on average 1.3443830570902393) internal successors, (730), 548 states have internal predecessors, (730), 79 states have call successors, (79), 26 states have call predecessors, (79), 31 states have return successors, (91), 79 states have call predecessors, (91), 74 states have call successors, (91) [2022-07-14 07:05:10,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 900 transitions. [2022-07-14 07:05:10,645 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 900 transitions. Word has length 44 [2022-07-14 07:05:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:10,645 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 900 transitions. [2022-07-14 07:05:10,646 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 07:05:10,646 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 900 transitions. [2022-07-14 07:05:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:10,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:10,648 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 07:05:10,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-14 07:05:10,648 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:10,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1376070278, now seen corresponding path program 1 times [2022-07-14 07:05:10,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:10,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670894212] [2022-07-14 07:05:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:10,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,718 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 07:05:10,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:10,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670894212] [2022-07-14 07:05:10,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670894212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:10,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:10,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:10,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499891781] [2022-07-14 07:05:10,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:10,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:10,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:10,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:10,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:10,721 INFO L87 Difference]: Start difference. First operand 654 states and 900 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 07:05:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:11,093 INFO L93 Difference]: Finished difference Result 700 states and 969 transitions. [2022-07-14 07:05:11,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:11,093 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 07:05:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:11,096 INFO L225 Difference]: With dead ends: 700 [2022-07-14 07:05:11,096 INFO L226 Difference]: Without dead ends: 658 [2022-07-14 07:05:11,096 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 07:05:11,097 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 235 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 3665 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:11,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 3665 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:11,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-07-14 07:05:11,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 642. [2022-07-14 07:05:11,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 534 states have (on average 1.3389513108614233) internal successors, (715), 539 states have internal predecessors, (715), 76 states have call successors, (76), 26 states have call predecessors, (76), 31 states have return successors, (88), 76 states have call predecessors, (88), 71 states have call successors, (88) [2022-07-14 07:05:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 879 transitions. [2022-07-14 07:05:11,111 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 879 transitions. Word has length 44 [2022-07-14 07:05:11,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:11,111 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 879 transitions. [2022-07-14 07:05:11,111 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 07:05:11,111 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 879 transitions. [2022-07-14 07:05:11,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:11,113 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:11,113 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 07:05:11,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-14 07:05:11,113 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:11,114 INFO L85 PathProgramCache]: Analyzing trace with hash -766417177, now seen corresponding path program 1 times [2022-07-14 07:05:11,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:11,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806565153] [2022-07-14 07:05:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:11,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,151 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 07:05:11,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:11,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806565153] [2022-07-14 07:05:11,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806565153] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:11,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:11,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:11,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872361204] [2022-07-14 07:05:11,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:11,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:11,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:11,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:11,154 INFO L87 Difference]: Start difference. First operand 642 states and 879 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 07:05:11,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:11,531 INFO L93 Difference]: Finished difference Result 693 states and 983 transitions. [2022-07-14 07:05:11,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:11,531 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 07:05:11,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:11,534 INFO L225 Difference]: With dead ends: 693 [2022-07-14 07:05:11,534 INFO L226 Difference]: Without dead ends: 693 [2022-07-14 07:05:11,534 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 07:05:11,535 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 134 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:11,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 2188 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:11,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-07-14 07:05:11,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 649. [2022-07-14 07:05:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 539 states have (on average 1.339517625231911) internal successors, (722), 545 states have internal predecessors, (722), 77 states have call successors, (77), 26 states have call predecessors, (77), 32 states have return successors, (95), 77 states have call predecessors, (95), 72 states have call successors, (95) [2022-07-14 07:05:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 894 transitions. [2022-07-14 07:05:11,547 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 894 transitions. Word has length 45 [2022-07-14 07:05:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:11,547 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 894 transitions. [2022-07-14 07:05:11,547 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 07:05:11,548 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 894 transitions. [2022-07-14 07:05:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:11,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:11,550 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] [2022-07-14 07:05:11,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-14 07:05:11,550 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:11,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:11,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1275890267, now seen corresponding path program 1 times [2022-07-14 07:05:11,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:11,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996542759] [2022-07-14 07:05:11,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:11,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,618 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 07:05:11,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:11,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996542759] [2022-07-14 07:05:11,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996542759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:11,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:11,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:11,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933669183] [2022-07-14 07:05:11,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:11,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:11,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:11,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:11,621 INFO L87 Difference]: Start difference. First operand 649 states and 894 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 07:05:12,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:12,009 INFO L93 Difference]: Finished difference Result 684 states and 959 transitions. [2022-07-14 07:05:12,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:12,010 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 07:05:12,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:12,013 INFO L225 Difference]: With dead ends: 684 [2022-07-14 07:05:12,013 INFO L226 Difference]: Without dead ends: 667 [2022-07-14 07:05:12,013 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 07:05:12,014 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 245 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:12,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 3430 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:12,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-07-14 07:05:12,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 647. [2022-07-14 07:05:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 538 states have (on average 1.338289962825279) internal successors, (720), 544 states have internal predecessors, (720), 76 states have call successors, (76), 26 states have call predecessors, (76), 32 states have return successors, (94), 76 states have call predecessors, (94), 71 states have call successors, (94) [2022-07-14 07:05:12,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 890 transitions. [2022-07-14 07:05:12,026 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 890 transitions. Word has length 45 [2022-07-14 07:05:12,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:12,026 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 890 transitions. [2022-07-14 07:05:12,027 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 07:05:12,027 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 890 transitions. [2022-07-14 07:05:12,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 07:05:12,033 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:12,033 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 07:05:12,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-14 07:05:12,034 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:12,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:12,034 INFO L85 PathProgramCache]: Analyzing trace with hash -499982008, now seen corresponding path program 1 times [2022-07-14 07:05:12,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:12,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275064821] [2022-07-14 07:05:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,087 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 07:05:12,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:12,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275064821] [2022-07-14 07:05:12,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275064821] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:12,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:12,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436240572] [2022-07-14 07:05:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:12,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:12,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:12,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:12,089 INFO L87 Difference]: Start difference. First operand 647 states and 890 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 07:05:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:12,402 INFO L93 Difference]: Finished difference Result 691 states and 969 transitions. [2022-07-14 07:05:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:12,403 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 07:05:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:12,406 INFO L225 Difference]: With dead ends: 691 [2022-07-14 07:05:12,406 INFO L226 Difference]: Without dead ends: 659 [2022-07-14 07:05:12,407 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 07:05:12,407 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 166 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 3513 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:12,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 3513 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-07-14 07:05:12,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 639. [2022-07-14 07:05:12,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 532 states have (on average 1.330827067669173) internal successors, (708), 538 states have internal predecessors, (708), 74 states have call successors, (74), 26 states have call predecessors, (74), 32 states have return successors, (92), 74 states have call predecessors, (92), 69 states have call successors, (92) [2022-07-14 07:05:12,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 874 transitions. [2022-07-14 07:05:12,438 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 874 transitions. Word has length 45 [2022-07-14 07:05:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:12,438 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 874 transitions. [2022-07-14 07:05:12,439 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 07:05:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 874 transitions. [2022-07-14 07:05:12,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-14 07:05:12,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:12,441 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] [2022-07-14 07:05:12,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-14 07:05:12,442 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:12,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:12,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1469834137, now seen corresponding path program 1 times [2022-07-14 07:05:12,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:12,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682069671] [2022-07-14 07:05:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:12,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,586 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 07:05:12,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:12,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682069671] [2022-07-14 07:05:12,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682069671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:12,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:12,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:12,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41396266] [2022-07-14 07:05:12,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:12,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:12,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:12,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:12,588 INFO L87 Difference]: Start difference. First operand 639 states and 874 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 07:05:13,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:13,302 INFO L93 Difference]: Finished difference Result 671 states and 936 transitions. [2022-07-14 07:05:13,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:13,302 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 07:05:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:13,305 INFO L225 Difference]: With dead ends: 671 [2022-07-14 07:05:13,305 INFO L226 Difference]: Without dead ends: 656 [2022-07-14 07:05:13,305 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 07:05:13,306 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 110 mSDsluCounter, 3749 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4290 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:13,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4290 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:13,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2022-07-14 07:05:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 636. [2022-07-14 07:05:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 530 states have (on average 1.330188679245283) internal successors, (705), 536 states have internal predecessors, (705), 73 states have call successors, (73), 26 states have call predecessors, (73), 32 states have return successors, (91), 73 states have call predecessors, (91), 68 states have call successors, (91) [2022-07-14 07:05:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 869 transitions. [2022-07-14 07:05:13,318 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 869 transitions. Word has length 46 [2022-07-14 07:05:13,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:13,318 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 869 transitions. [2022-07-14 07:05:13,318 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 07:05:13,318 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 869 transitions. [2022-07-14 07:05:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-14 07:05:13,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:13,320 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] [2022-07-14 07:05:13,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-14 07:05:13,321 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:13,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1528127283, now seen corresponding path program 1 times [2022-07-14 07:05:13,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:13,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950350244] [2022-07-14 07:05:13,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:13,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-14 07:05:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,364 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 07:05:13,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:13,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950350244] [2022-07-14 07:05:13,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950350244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:13,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:13,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:13,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89559010] [2022-07-14 07:05:13,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:13,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:13,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:13,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:13,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:13,366 INFO L87 Difference]: Start difference. First operand 636 states and 869 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 07:05:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:13,666 INFO L93 Difference]: Finished difference Result 668 states and 950 transitions. [2022-07-14 07:05:13,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:13,667 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 07:05:13,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:13,673 INFO L225 Difference]: With dead ends: 668 [2022-07-14 07:05:13,673 INFO L226 Difference]: Without dead ends: 666 [2022-07-14 07:05:13,673 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 07:05:13,674 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 102 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:13,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 2632 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-07-14 07:05:13,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 640. [2022-07-14 07:05:13,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 532 states have (on average 1.3289473684210527) internal successors, (707), 540 states have internal predecessors, (707), 73 states have call successors, (73), 26 states have call predecessors, (73), 34 states have return successors, (107), 73 states have call predecessors, (107), 68 states have call successors, (107) [2022-07-14 07:05:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 887 transitions. [2022-07-14 07:05:13,688 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 887 transitions. Word has length 46 [2022-07-14 07:05:13,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:13,688 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 887 transitions. [2022-07-14 07:05:13,688 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 07:05:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 887 transitions. [2022-07-14 07:05:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:13,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:13,691 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 07:05:13,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-14 07:05:13,691 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:13,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:13,692 INFO L85 PathProgramCache]: Analyzing trace with hash -250939957, now seen corresponding path program 1 times [2022-07-14 07:05:13,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:13,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68528427] [2022-07-14 07:05:13,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:13,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,847 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 07:05:13,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:13,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68528427] [2022-07-14 07:05:13,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68528427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:13,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:13,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:13,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271758077] [2022-07-14 07:05:13,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:13,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:13,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:13,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:13,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:13,849 INFO L87 Difference]: Start difference. First operand 640 states and 887 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 07:05:14,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:14,559 INFO L93 Difference]: Finished difference Result 672 states and 949 transitions. [2022-07-14 07:05:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:14,559 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 07:05:14,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:14,563 INFO L225 Difference]: With dead ends: 672 [2022-07-14 07:05:14,563 INFO L226 Difference]: Without dead ends: 651 [2022-07-14 07:05:14,563 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 07:05:14,564 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 123 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:14,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4682 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:14,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-07-14 07:05:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 631. [2022-07-14 07:05:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 525 states have (on average 1.3295238095238096) internal successors, (698), 533 states have internal predecessors, (698), 71 states have call successors, (71), 26 states have call predecessors, (71), 34 states have return successors, (105), 71 states have call predecessors, (105), 66 states have call successors, (105) [2022-07-14 07:05:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 874 transitions. [2022-07-14 07:05:14,577 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 874 transitions. Word has length 54 [2022-07-14 07:05:14,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:14,577 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 874 transitions. [2022-07-14 07:05:14,578 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 07:05:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 874 transitions. [2022-07-14 07:05:14,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 07:05:14,580 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:14,580 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 07:05:14,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-14 07:05:14,580 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:14,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:14,581 INFO L85 PathProgramCache]: Analyzing trace with hash 43125576, now seen corresponding path program 1 times [2022-07-14 07:05:14,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:14,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582531485] [2022-07-14 07:05:14,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:14,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,715 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 07:05:14,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582531485] [2022-07-14 07:05:14,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582531485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:14,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:14,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:14,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23784144] [2022-07-14 07:05:14,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:14,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:14,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:14,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:14,718 INFO L87 Difference]: Start difference. First operand 631 states and 874 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 07:05:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:15,415 INFO L93 Difference]: Finished difference Result 663 states and 935 transitions. [2022-07-14 07:05:15,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:15,416 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 07:05:15,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:15,418 INFO L225 Difference]: With dead ends: 663 [2022-07-14 07:05:15,418 INFO L226 Difference]: Without dead ends: 648 [2022-07-14 07:05:15,419 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 07:05:15,419 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 123 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4550 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:15,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4550 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:15,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2022-07-14 07:05:15,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 628. [2022-07-14 07:05:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 523 states have (on average 1.3288718929254302) internal successors, (695), 531 states have internal predecessors, (695), 70 states have call successors, (70), 26 states have call predecessors, (70), 34 states have return successors, (104), 70 states have call predecessors, (104), 65 states have call successors, (104) [2022-07-14 07:05:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 869 transitions. [2022-07-14 07:05:15,432 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 869 transitions. Word has length 47 [2022-07-14 07:05:15,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:15,433 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 869 transitions. [2022-07-14 07:05:15,433 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 07:05:15,433 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 869 transitions. [2022-07-14 07:05:15,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:05:15,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:15,435 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 07:05:15,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-14 07:05:15,435 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:15,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:15,436 INFO L85 PathProgramCache]: Analyzing trace with hash 973189000, now seen corresponding path program 1 times [2022-07-14 07:05:15,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:15,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568533148] [2022-07-14 07:05:15,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:15,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,486 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 07:05:15,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:15,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568533148] [2022-07-14 07:05:15,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568533148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:15,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:15,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:15,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177996911] [2022-07-14 07:05:15,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:15,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:15,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:15,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:15,489 INFO L87 Difference]: Start difference. First operand 628 states and 869 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 07:05:15,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:15,812 INFO L93 Difference]: Finished difference Result 739 states and 1029 transitions. [2022-07-14 07:05:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:15,812 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 07:05:15,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:15,828 INFO L225 Difference]: With dead ends: 739 [2022-07-14 07:05:15,828 INFO L226 Difference]: Without dead ends: 739 [2022-07-14 07:05:15,828 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 07:05:15,830 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 315 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:15,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 1320 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:15,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-07-14 07:05:15,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 692. [2022-07-14 07:05:15,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 577 states have (on average 1.3275563258232235) internal successors, (766), 585 states have internal predecessors, (766), 73 states have call successors, (73), 30 states have call predecessors, (73), 41 states have return successors, (113), 76 states have call predecessors, (113), 69 states have call successors, (113) [2022-07-14 07:05:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 952 transitions. [2022-07-14 07:05:15,850 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 952 transitions. Word has length 50 [2022-07-14 07:05:15,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:15,850 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 952 transitions. [2022-07-14 07:05:15,850 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 07:05:15,850 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 952 transitions. [2022-07-14 07:05:15,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:05:15,852 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:15,852 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 07:05:15,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-14 07:05:15,853 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:15,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash 721425391, now seen corresponding path program 1 times [2022-07-14 07:05:15,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:15,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358630975] [2022-07-14 07:05:15,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:15,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,999 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 07:05:15,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:15,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358630975] [2022-07-14 07:05:15,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358630975] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:16,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:16,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:16,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568889113] [2022-07-14 07:05:16,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:16,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:16,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:16,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:16,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:16,001 INFO L87 Difference]: Start difference. First operand 692 states and 952 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 07:05:16,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:16,779 INFO L93 Difference]: Finished difference Result 753 states and 1044 transitions. [2022-07-14 07:05:16,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:16,780 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 07:05:16,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:16,783 INFO L225 Difference]: With dead ends: 753 [2022-07-14 07:05:16,783 INFO L226 Difference]: Without dead ends: 736 [2022-07-14 07:05:16,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:16,784 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 248 mSDsluCounter, 3683 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:16,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 4193 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:16,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-07-14 07:05:16,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 690. [2022-07-14 07:05:16,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 576 states have (on average 1.3263888888888888) internal successors, (764), 584 states have internal predecessors, (764), 72 states have call successors, (72), 30 states have call predecessors, (72), 41 states have return successors, (112), 75 states have call predecessors, (112), 68 states have call successors, (112) [2022-07-14 07:05:16,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 948 transitions. [2022-07-14 07:05:16,798 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 948 transitions. Word has length 51 [2022-07-14 07:05:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:16,798 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 948 transitions. [2022-07-14 07:05:16,798 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 07:05:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 948 transitions. [2022-07-14 07:05:16,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:16,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:16,800 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 07:05:16,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-14 07:05:16,801 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:16,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:16,801 INFO L85 PathProgramCache]: Analyzing trace with hash 618682838, now seen corresponding path program 1 times [2022-07-14 07:05:16,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:16,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169796431] [2022-07-14 07:05:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:16,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,915 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 07:05:16,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:16,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169796431] [2022-07-14 07:05:16,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169796431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:16,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:16,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:16,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871432824] [2022-07-14 07:05:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:16,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:16,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:16,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:16,917 INFO L87 Difference]: Start difference. First operand 690 states and 948 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 07:05:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:17,613 INFO L93 Difference]: Finished difference Result 735 states and 1023 transitions. [2022-07-14 07:05:17,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:17,614 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 07:05:17,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:17,616 INFO L225 Difference]: With dead ends: 735 [2022-07-14 07:05:17,616 INFO L226 Difference]: Without dead ends: 718 [2022-07-14 07:05:17,616 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 07:05:17,617 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 235 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:17,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 4210 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:17,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-07-14 07:05:17,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 688. [2022-07-14 07:05:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 575 states have (on average 1.325217391304348) internal successors, (762), 583 states have internal predecessors, (762), 71 states have call successors, (71), 30 states have call predecessors, (71), 41 states have return successors, (111), 74 states have call predecessors, (111), 67 states have call successors, (111) [2022-07-14 07:05:17,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 944 transitions. [2022-07-14 07:05:17,629 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 944 transitions. Word has length 48 [2022-07-14 07:05:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:17,630 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 944 transitions. [2022-07-14 07:05:17,630 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 07:05:17,630 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 944 transitions. [2022-07-14 07:05:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:17,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:17,632 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 07:05:17,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-14 07:05:17,633 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:17,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1166693008, now seen corresponding path program 1 times [2022-07-14 07:05:17,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:17,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3913173] [2022-07-14 07:05:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:17,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:05:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,665 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 07:05:17,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:17,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3913173] [2022-07-14 07:05:17,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3913173] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:17,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:17,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:17,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546870905] [2022-07-14 07:05:17,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:17,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:17,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:17,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:17,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:17,669 INFO L87 Difference]: Start difference. First operand 688 states and 944 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 07:05:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:17,872 INFO L93 Difference]: Finished difference Result 647 states and 868 transitions. [2022-07-14 07:05:17,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:17,874 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 07:05:17,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:17,876 INFO L225 Difference]: With dead ends: 647 [2022-07-14 07:05:17,876 INFO L226 Difference]: Without dead ends: 644 [2022-07-14 07:05:17,876 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 07:05:17,877 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 97 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1554 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 07:05:17,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1554 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:17,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-07-14 07:05:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 615. [2022-07-14 07:05:17,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 518 states have (on average 1.3204633204633205) internal successors, (684), 524 states have internal predecessors, (684), 62 states have call successors, (62), 27 states have call predecessors, (62), 34 states have return successors, (75), 63 states have call predecessors, (75), 58 states have call successors, (75) [2022-07-14 07:05:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 821 transitions. [2022-07-14 07:05:17,886 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 821 transitions. Word has length 48 [2022-07-14 07:05:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:17,886 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 821 transitions. [2022-07-14 07:05:17,886 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 07:05:17,886 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 821 transitions. [2022-07-14 07:05:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:05:17,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:17,888 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 07:05:17,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-14 07:05:17,888 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:17,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:17,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1152872609, now seen corresponding path program 1 times [2022-07-14 07:05:17,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:17,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799852418] [2022-07-14 07:05:17,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:17,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 07:05:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,021 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 07:05:18,053 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 07:05:18,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:18,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799852418] [2022-07-14 07:05:18,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799852418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:18,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:18,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:18,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319850417] [2022-07-14 07:05:18,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:18,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:18,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:18,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:18,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:18,056 INFO L87 Difference]: Start difference. First operand 615 states and 821 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 07:05:18,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:18,740 INFO L93 Difference]: Finished difference Result 640 states and 853 transitions. [2022-07-14 07:05:18,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:18,740 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 07:05:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:18,742 INFO L225 Difference]: With dead ends: 640 [2022-07-14 07:05:18,742 INFO L226 Difference]: Without dead ends: 625 [2022-07-14 07:05:18,743 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 07:05:18,743 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 116 mSDsluCounter, 3802 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4294 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:18,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4294 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:18,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-07-14 07:05:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 613. [2022-07-14 07:05:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 517 states have (on average 1.3191489361702127) internal successors, (682), 523 states have internal predecessors, (682), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-14 07:05:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 817 transitions. [2022-07-14 07:05:18,752 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 817 transitions. Word has length 57 [2022-07-14 07:05:18,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:18,753 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 817 transitions. [2022-07-14 07:05:18,753 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 07:05:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 817 transitions. [2022-07-14 07:05:18,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:18,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:18,754 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 07:05:18,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-14 07:05:18,755 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:18,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:18,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1985597816, now seen corresponding path program 1 times [2022-07-14 07:05:18,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:18,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752113819] [2022-07-14 07:05:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:18,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,887 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 07:05:18,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:18,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752113819] [2022-07-14 07:05:18,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752113819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:18,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:18,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:18,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007065435] [2022-07-14 07:05:18,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:18,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:18,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:18,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:18,890 INFO L87 Difference]: Start difference. First operand 613 states and 817 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 07:05:19,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:19,562 INFO L93 Difference]: Finished difference Result 637 states and 848 transitions. [2022-07-14 07:05:19,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:19,563 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 07:05:19,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:19,565 INFO L225 Difference]: With dead ends: 637 [2022-07-14 07:05:19,565 INFO L226 Difference]: Without dead ends: 622 [2022-07-14 07:05:19,565 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 07:05:19,565 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 116 mSDsluCounter, 3755 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 4239 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:19,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 4239 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:19,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-07-14 07:05:19,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 610. [2022-07-14 07:05:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 515 states have (on average 1.3184466019417476) internal successors, (679), 521 states have internal predecessors, (679), 60 states have call successors, (60), 27 states have call predecessors, (60), 34 states have return successors, (73), 61 states have call predecessors, (73), 56 states have call successors, (73) [2022-07-14 07:05:19,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 812 transitions. [2022-07-14 07:05:19,582 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 812 transitions. Word has length 48 [2022-07-14 07:05:19,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:19,582 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 812 transitions. [2022-07-14 07:05:19,582 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 07:05:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 812 transitions. [2022-07-14 07:05:19,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:05:19,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:19,584 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 07:05:19,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-14 07:05:19,585 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:19,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:19,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1806708367, now seen corresponding path program 1 times [2022-07-14 07:05:19,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:19,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194688424] [2022-07-14 07:05:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:19,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 07:05:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,646 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 07:05:19,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:19,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194688424] [2022-07-14 07:05:19,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194688424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:19,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:19,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:19,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756618914] [2022-07-14 07:05:19,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:19,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:19,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:19,648 INFO L87 Difference]: Start difference. First operand 610 states and 812 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 07:05:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:19,961 INFO L93 Difference]: Finished difference Result 678 states and 897 transitions. [2022-07-14 07:05:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:19,961 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 07:05:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:19,964 INFO L225 Difference]: With dead ends: 678 [2022-07-14 07:05:19,964 INFO L226 Difference]: Without dead ends: 678 [2022-07-14 07:05:19,964 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 07:05:19,964 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 334 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:19,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 2053 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2022-07-14 07:05:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 616. [2022-07-14 07:05:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 520 states have (on average 1.3173076923076923) internal successors, (685), 526 states have internal predecessors, (685), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-14 07:05:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 820 transitions. [2022-07-14 07:05:19,977 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 820 transitions. Word has length 50 [2022-07-14 07:05:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:19,977 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 820 transitions. [2022-07-14 07:05:19,978 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 07:05:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 820 transitions. [2022-07-14 07:05:19,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:05:19,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:19,979 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] [2022-07-14 07:05:19,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-14 07:05:19,980 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:19,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1801199632, now seen corresponding path program 1 times [2022-07-14 07:05:19,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:19,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38617347] [2022-07-14 07:05:19,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:19,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,044 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 07:05:20,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:20,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38617347] [2022-07-14 07:05:20,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38617347] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:20,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:20,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:20,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350837505] [2022-07-14 07:05:20,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:20,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:20,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:20,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:20,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:20,048 INFO L87 Difference]: Start difference. First operand 616 states and 820 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 07:05:20,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:20,419 INFO L93 Difference]: Finished difference Result 628 states and 837 transitions. [2022-07-14 07:05:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:20,419 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 07:05:20,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:20,421 INFO L225 Difference]: With dead ends: 628 [2022-07-14 07:05:20,421 INFO L226 Difference]: Without dead ends: 628 [2022-07-14 07:05:20,422 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 07:05:20,422 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 124 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:20,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1415 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-07-14 07:05:20,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 616. [2022-07-14 07:05:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 520 states have (on average 1.3134615384615385) internal successors, (683), 526 states have internal predecessors, (683), 61 states have call successors, (61), 27 states have call predecessors, (61), 34 states have return successors, (74), 62 states have call predecessors, (74), 57 states have call successors, (74) [2022-07-14 07:05:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 818 transitions. [2022-07-14 07:05:20,433 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 818 transitions. Word has length 53 [2022-07-14 07:05:20,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:20,433 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 818 transitions. [2022-07-14 07:05:20,433 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 07:05:20,433 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 818 transitions. [2022-07-14 07:05:20,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:05:20,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:20,435 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 07:05:20,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-14 07:05:20,435 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:20,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:20,436 INFO L85 PathProgramCache]: Analyzing trace with hash -261050894, now seen corresponding path program 1 times [2022-07-14 07:05:20,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:20,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915160632] [2022-07-14 07:05:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:20,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,560 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 07:05:20,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:20,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915160632] [2022-07-14 07:05:20,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915160632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:20,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:20,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558419135] [2022-07-14 07:05:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:20,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:20,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:20,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:20,561 INFO L87 Difference]: Start difference. First operand 616 states and 818 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 07:05:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:21,272 INFO L93 Difference]: Finished difference Result 643 states and 852 transitions. [2022-07-14 07:05:21,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:21,274 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 07:05:21,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:21,275 INFO L225 Difference]: With dead ends: 643 [2022-07-14 07:05:21,276 INFO L226 Difference]: Without dead ends: 626 [2022-07-14 07:05:21,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:21,276 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 325 mSDsluCounter, 3520 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:21,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 3993 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:21,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-07-14 07:05:21,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 614. [2022-07-14 07:05:21,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 519 states have (on average 1.3121387283236994) internal successors, (681), 525 states have internal predecessors, (681), 60 states have call successors, (60), 27 states have call predecessors, (60), 34 states have return successors, (73), 61 states have call predecessors, (73), 56 states have call successors, (73) [2022-07-14 07:05:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 814 transitions. [2022-07-14 07:05:21,285 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 814 transitions. Word has length 52 [2022-07-14 07:05:21,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:21,285 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 814 transitions. [2022-07-14 07:05:21,285 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 07:05:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 814 transitions. [2022-07-14 07:05:21,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:05:21,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:21,287 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 07:05:21,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-14 07:05:21,287 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:21,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:21,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1698213256, now seen corresponding path program 1 times [2022-07-14 07:05:21,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:21,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072273050] [2022-07-14 07:05:21,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:21,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 07:05:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 07:05:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,348 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 07:05:21,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:21,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072273050] [2022-07-14 07:05:21,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072273050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:21,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:21,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:21,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125142698] [2022-07-14 07:05:21,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:21,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:21,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:21,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:21,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:21,351 INFO L87 Difference]: Start difference. First operand 614 states and 814 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 07:05:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:21,736 INFO L93 Difference]: Finished difference Result 657 states and 870 transitions. [2022-07-14 07:05:21,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:21,736 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 07:05:21,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:21,738 INFO L225 Difference]: With dead ends: 657 [2022-07-14 07:05:21,738 INFO L226 Difference]: Without dead ends: 606 [2022-07-14 07:05:21,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:21,738 INFO L413 NwaCegarLoop]: 471 mSDtfsCounter, 262 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:21,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 2760 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:21,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-07-14 07:05:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 587. [2022-07-14 07:05:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 497 states have (on average 1.2977867203219315) internal successors, (645), 503 states have internal predecessors, (645), 55 states have call successors, (55), 27 states have call predecessors, (55), 34 states have return successors, (67), 56 states have call predecessors, (67), 51 states have call successors, (67) [2022-07-14 07:05:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 767 transitions. [2022-07-14 07:05:21,747 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 767 transitions. Word has length 51 [2022-07-14 07:05:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:21,748 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 767 transitions. [2022-07-14 07:05:21,748 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 07:05:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 767 transitions. [2022-07-14 07:05:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 07:05:21,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:21,749 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 07:05:21,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-14 07:05:21,749 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash 673526006, now seen corresponding path program 1 times [2022-07-14 07:05:21,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:21,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793229560] [2022-07-14 07:05:21,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:21,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 07:05:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 07:05:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,794 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 07:05:21,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:21,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793229560] [2022-07-14 07:05:21,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793229560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:21,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:21,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:21,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682026228] [2022-07-14 07:05:21,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:21,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:21,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:21,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:21,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:21,796 INFO L87 Difference]: Start difference. First operand 587 states and 767 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 07:05:22,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:22,057 INFO L93 Difference]: Finished difference Result 593 states and 774 transitions. [2022-07-14 07:05:22,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:22,057 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 07:05:22,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:22,058 INFO L225 Difference]: With dead ends: 593 [2022-07-14 07:05:22,059 INFO L226 Difference]: Without dead ends: 593 [2022-07-14 07:05:22,059 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 07:05:22,059 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 98 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:22,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1982 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:22,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-07-14 07:05:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2022-07-14 07:05:22,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 489 states have (on average 1.294478527607362) internal successors, (633), 495 states have internal predecessors, (633), 53 states have call successors, (53), 27 states have call predecessors, (53), 34 states have return successors, (65), 54 states have call predecessors, (65), 49 states have call successors, (65) [2022-07-14 07:05:22,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 751 transitions. [2022-07-14 07:05:22,067 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 751 transitions. Word has length 51 [2022-07-14 07:05:22,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:22,068 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 751 transitions. [2022-07-14 07:05:22,068 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 07:05:22,068 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 751 transitions. [2022-07-14 07:05:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:05:22,069 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:22,069 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 07:05:22,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-14 07:05:22,070 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:22,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:22,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1072773224, now seen corresponding path program 1 times [2022-07-14 07:05:22,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:22,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681216401] [2022-07-14 07:05:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:22,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 07:05:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,116 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 07:05:22,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:22,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681216401] [2022-07-14 07:05:22,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681216401] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:22,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:22,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:22,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406188321] [2022-07-14 07:05:22,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:22,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:22,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:22,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:22,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:22,118 INFO L87 Difference]: Start difference. First operand 577 states and 751 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 07:05:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:22,375 INFO L93 Difference]: Finished difference Result 589 states and 768 transitions. [2022-07-14 07:05:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:22,375 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 07:05:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:22,376 INFO L225 Difference]: With dead ends: 589 [2022-07-14 07:05:22,376 INFO L226 Difference]: Without dead ends: 584 [2022-07-14 07:05:22,376 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 07:05:22,377 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 171 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:22,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1738 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:22,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-07-14 07:05:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 572. [2022-07-14 07:05:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 485 states have (on average 1.2948453608247423) internal successors, (628), 491 states have internal predecessors, (628), 52 states have call successors, (52), 27 states have call predecessors, (52), 34 states have return successors, (64), 53 states have call predecessors, (64), 48 states have call successors, (64) [2022-07-14 07:05:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 744 transitions. [2022-07-14 07:05:22,389 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 744 transitions. Word has length 52 [2022-07-14 07:05:22,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:22,391 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 744 transitions. [2022-07-14 07:05:22,391 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 07:05:22,392 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 744 transitions. [2022-07-14 07:05:22,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 07:05:22,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:22,393 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 07:05:22,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-14 07:05:22,393 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:22,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:22,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1299527003, now seen corresponding path program 1 times [2022-07-14 07:05:22,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:22,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461018457] [2022-07-14 07:05:22,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:22,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,437 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 07:05:22,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:22,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461018457] [2022-07-14 07:05:22,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461018457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:22,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:22,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48704098] [2022-07-14 07:05:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:22,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:22,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:22,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:22,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:22,441 INFO L87 Difference]: Start difference. First operand 572 states and 744 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 07:05:22,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:22,743 INFO L93 Difference]: Finished difference Result 681 states and 887 transitions. [2022-07-14 07:05:22,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:22,744 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 07:05:22,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:22,745 INFO L225 Difference]: With dead ends: 681 [2022-07-14 07:05:22,745 INFO L226 Difference]: Without dead ends: 681 [2022-07-14 07:05:22,745 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 07:05:22,746 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 217 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:22,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1318 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:22,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-14 07:05:22,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 600. [2022-07-14 07:05:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 511 states have (on average 1.289628180039139) internal successors, (659), 517 states have internal predecessors, (659), 52 states have call successors, (52), 27 states have call predecessors, (52), 36 states have return successors, (66), 55 states have call predecessors, (66), 48 states have call successors, (66) [2022-07-14 07:05:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 777 transitions. [2022-07-14 07:05:22,754 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 777 transitions. Word has length 52 [2022-07-14 07:05:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:22,755 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 777 transitions. [2022-07-14 07:05:22,755 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 07:05:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 777 transitions. [2022-07-14 07:05:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 07:05:22,756 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:22,756 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 07:05:22,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-14 07:05:22,756 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:22,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2075413267, now seen corresponding path program 1 times [2022-07-14 07:05:22,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:22,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735994954] [2022-07-14 07:05:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,807 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 07:05:22,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:22,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735994954] [2022-07-14 07:05:22,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735994954] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:22,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:22,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:22,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145054143] [2022-07-14 07:05:22,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:22,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:22,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:22,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:22,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:22,809 INFO L87 Difference]: Start difference. First operand 600 states and 777 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 07:05:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:23,293 INFO L93 Difference]: Finished difference Result 679 states and 884 transitions. [2022-07-14 07:05:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:23,294 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 07:05:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:23,295 INFO L225 Difference]: With dead ends: 679 [2022-07-14 07:05:23,295 INFO L226 Difference]: Without dead ends: 679 [2022-07-14 07:05:23,296 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 07:05:23,296 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 712 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:23,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1524 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:23,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-07-14 07:05:23,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 600. [2022-07-14 07:05:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 511 states have (on average 1.2876712328767124) internal successors, (658), 517 states have internal predecessors, (658), 52 states have call successors, (52), 27 states have call predecessors, (52), 36 states have return successors, (66), 55 states have call predecessors, (66), 48 states have call successors, (66) [2022-07-14 07:05:23,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 776 transitions. [2022-07-14 07:05:23,305 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 776 transitions. Word has length 53 [2022-07-14 07:05:23,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:23,306 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 776 transitions. [2022-07-14 07:05:23,306 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 07:05:23,306 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 776 transitions. [2022-07-14 07:05:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 07:05:23,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:23,307 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 07:05:23,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-14 07:05:23,307 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:23,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:23,308 INFO L85 PathProgramCache]: Analyzing trace with hash 726957118, now seen corresponding path program 1 times [2022-07-14 07:05:23,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:23,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824102961] [2022-07-14 07:05:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 07:05:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,421 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 07:05:23,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:23,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824102961] [2022-07-14 07:05:23,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824102961] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:23,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:23,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122230391] [2022-07-14 07:05:23,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:23,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:23,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:23,423 INFO L87 Difference]: Start difference. First operand 600 states and 776 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 07:05:24,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:24,191 INFO L93 Difference]: Finished difference Result 652 states and 840 transitions. [2022-07-14 07:05:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:24,191 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 07:05:24,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:24,192 INFO L225 Difference]: With dead ends: 652 [2022-07-14 07:05:24,192 INFO L226 Difference]: Without dead ends: 635 [2022-07-14 07:05:24,193 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 07:05:24,193 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 243 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:24,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 4027 Invalid, 1704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:24,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2022-07-14 07:05:24,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 598. [2022-07-14 07:05:24,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 510 states have (on average 1.2862745098039217) internal successors, (656), 516 states have internal predecessors, (656), 51 states have call successors, (51), 27 states have call predecessors, (51), 36 states have return successors, (65), 54 states have call predecessors, (65), 47 states have call successors, (65) [2022-07-14 07:05:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 772 transitions. [2022-07-14 07:05:24,201 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 772 transitions. Word has length 59 [2022-07-14 07:05:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:24,202 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 772 transitions. [2022-07-14 07:05:24,202 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 07:05:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 772 transitions. [2022-07-14 07:05:24,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 07:05:24,203 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:24,203 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, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:24,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-14 07:05:24,203 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:24,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:24,203 INFO L85 PathProgramCache]: Analyzing trace with hash -2135115312, now seen corresponding path program 1 times [2022-07-14 07:05:24,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:24,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871315737] [2022-07-14 07:05:24,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:24,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:05:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,377 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 07:05:24,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:24,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871315737] [2022-07-14 07:05:24,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871315737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:24,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:24,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-14 07:05:24,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395035384] [2022-07-14 07:05:24,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:24,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-14 07:05:24,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:24,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-14 07:05:24,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:24,379 INFO L87 Difference]: Start difference. First operand 598 states and 772 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 07:05:25,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:25,093 INFO L93 Difference]: Finished difference Result 627 states and 808 transitions. [2022-07-14 07:05:25,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 07:05:25,094 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 07:05:25,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:25,095 INFO L225 Difference]: With dead ends: 627 [2022-07-14 07:05:25,095 INFO L226 Difference]: Without dead ends: 606 [2022-07-14 07:05:25,096 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 07:05:25,096 INFO L413 NwaCegarLoop]: 408 mSDtfsCounter, 235 mSDsluCounter, 3444 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3852 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:25,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 3852 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-07-14 07:05:25,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 594. [2022-07-14 07:05:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 507 states have (on average 1.2859960552268244) internal successors, (652), 513 states have internal predecessors, (652), 50 states have call successors, (50), 27 states have call predecessors, (50), 36 states have return successors, (64), 53 states have call predecessors, (64), 46 states have call successors, (64) [2022-07-14 07:05:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 766 transitions. [2022-07-14 07:05:25,102 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 766 transitions. Word has length 55 [2022-07-14 07:05:25,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:25,103 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 766 transitions. [2022-07-14 07:05:25,103 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 07:05:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 766 transitions. [2022-07-14 07:05:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:25,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:25,104 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 07:05:25,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-14 07:05:25,104 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash 538585810, now seen corresponding path program 1 times [2022-07-14 07:05:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:25,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242445127] [2022-07-14 07:05:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:25,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 07:05:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,147 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 07:05:25,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:25,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242445127] [2022-07-14 07:05:25,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242445127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:25,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:25,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:25,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122924064] [2022-07-14 07:05:25,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:25,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:25,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:25,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:25,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:25,149 INFO L87 Difference]: Start difference. First operand 594 states and 766 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 07:05:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:25,398 INFO L93 Difference]: Finished difference Result 606 states and 783 transitions. [2022-07-14 07:05:25,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:25,398 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 07:05:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:25,400 INFO L225 Difference]: With dead ends: 606 [2022-07-14 07:05:25,400 INFO L226 Difference]: Without dead ends: 601 [2022-07-14 07:05:25,400 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 07:05:25,401 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 171 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:25,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1662 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-07-14 07:05:25,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 589. [2022-07-14 07:05:25,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 503 states have (on average 1.286282306163022) internal successors, (647), 509 states have internal predecessors, (647), 49 states have call successors, (49), 27 states have call predecessors, (49), 36 states have return successors, (63), 52 states have call predecessors, (63), 45 states have call successors, (63) [2022-07-14 07:05:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 759 transitions. [2022-07-14 07:05:25,410 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 759 transitions. Word has length 54 [2022-07-14 07:05:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:25,411 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 759 transitions. [2022-07-14 07:05:25,411 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 07:05:25,411 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 759 transitions. [2022-07-14 07:05:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:25,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:25,412 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 07:05:25,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-14 07:05:25,412 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1724995102, now seen corresponding path program 1 times [2022-07-14 07:05:25,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:25,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884739882] [2022-07-14 07:05:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,507 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 07:05:25,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:25,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884739882] [2022-07-14 07:05:25,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884739882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:25,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:25,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:25,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38564176] [2022-07-14 07:05:25,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:25,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:25,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:25,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:25,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:25,508 INFO L87 Difference]: Start difference. First operand 589 states and 759 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 07:05:25,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:25,864 INFO L93 Difference]: Finished difference Result 621 states and 799 transitions. [2022-07-14 07:05:25,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:25,865 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 07:05:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:25,866 INFO L225 Difference]: With dead ends: 621 [2022-07-14 07:05:25,866 INFO L226 Difference]: Without dead ends: 598 [2022-07-14 07:05:25,867 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 07:05:25,867 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 232 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:25,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 3051 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-07-14 07:05:25,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 586. [2022-07-14 07:05:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 501 states have (on average 1.2854291417165669) internal successors, (644), 507 states have internal predecessors, (644), 48 states have call successors, (48), 27 states have call predecessors, (48), 36 states have return successors, (62), 51 states have call predecessors, (62), 44 states have call successors, (62) [2022-07-14 07:05:25,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 754 transitions. [2022-07-14 07:05:25,874 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 754 transitions. Word has length 54 [2022-07-14 07:05:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:25,874 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 754 transitions. [2022-07-14 07:05:25,874 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 07:05:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 754 transitions. [2022-07-14 07:05:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:25,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:25,875 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 07:05:25,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-14 07:05:25,876 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:25,876 INFO L85 PathProgramCache]: Analyzing trace with hash -726384384, now seen corresponding path program 1 times [2022-07-14 07:05:25,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:25,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720362833] [2022-07-14 07:05:25,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:25,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,932 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 07:05:25,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:25,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720362833] [2022-07-14 07:05:25,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720362833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:25,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:25,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:25,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139624601] [2022-07-14 07:05:25,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:25,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:25,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:25,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:25,933 INFO L87 Difference]: Start difference. First operand 586 states and 754 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 07:05:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:26,360 INFO L93 Difference]: Finished difference Result 665 states and 860 transitions. [2022-07-14 07:05:26,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:26,360 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 07:05:26,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:26,362 INFO L225 Difference]: With dead ends: 665 [2022-07-14 07:05:26,362 INFO L226 Difference]: Without dead ends: 665 [2022-07-14 07:05:26,362 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 07:05:26,363 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 688 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:26,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1442 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:26,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-07-14 07:05:26,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 584. [2022-07-14 07:05:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 499 states have (on average 1.2845691382765532) internal successors, (641), 505 states have internal predecessors, (641), 48 states have call successors, (48), 27 states have call predecessors, (48), 36 states have return successors, (62), 51 states have call predecessors, (62), 44 states have call successors, (62) [2022-07-14 07:05:26,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 751 transitions. [2022-07-14 07:05:26,370 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 751 transitions. Word has length 54 [2022-07-14 07:05:26,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:26,371 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 751 transitions. [2022-07-14 07:05:26,371 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 07:05:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 751 transitions. [2022-07-14 07:05:26,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:26,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:26,372 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 07:05:26,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-14 07:05:26,372 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:26,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:26,372 INFO L85 PathProgramCache]: Analyzing trace with hash -726107554, now seen corresponding path program 1 times [2022-07-14 07:05:26,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:26,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981012417] [2022-07-14 07:05:26,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:26,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:26,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:26,475 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 07:05:26,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:26,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981012417] [2022-07-14 07:05:26,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981012417] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:26,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:26,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:26,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105869527] [2022-07-14 07:05:26,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:26,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:26,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:26,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:26,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:26,477 INFO L87 Difference]: Start difference. First operand 584 states and 751 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 07:05:27,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:27,033 INFO L93 Difference]: Finished difference Result 603 states and 775 transitions. [2022-07-14 07:05:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:27,033 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 07:05:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:27,034 INFO L225 Difference]: With dead ends: 603 [2022-07-14 07:05:27,034 INFO L226 Difference]: Without dead ends: 558 [2022-07-14 07:05:27,034 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 07:05:27,035 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 279 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:27,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 2499 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:27,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-07-14 07:05:27,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 542. [2022-07-14 07:05:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 459 states have (on average 1.2745098039215685) internal successors, (585), 465 states have internal predecessors, (585), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (60), 49 states have call predecessors, (60), 44 states have call successors, (60) [2022-07-14 07:05:27,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 693 transitions. [2022-07-14 07:05:27,042 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 693 transitions. Word has length 54 [2022-07-14 07:05:27,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:27,042 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 693 transitions. [2022-07-14 07:05:27,042 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 07:05:27,042 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 693 transitions. [2022-07-14 07:05:27,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:05:27,043 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:27,043 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 07:05:27,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-14 07:05:27,043 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:27,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1795419470, now seen corresponding path program 1 times [2022-07-14 07:05:27,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:27,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136641844] [2022-07-14 07:05:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:27,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,108 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 07:05:27,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:27,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136641844] [2022-07-14 07:05:27,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136641844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:27,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:27,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:27,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387189648] [2022-07-14 07:05:27,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:27,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:27,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:27,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:27,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:27,110 INFO L87 Difference]: Start difference. First operand 542 states and 693 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 07:05:27,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:27,438 INFO L93 Difference]: Finished difference Result 572 states and 730 transitions. [2022-07-14 07:05:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:27,438 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 07:05:27,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:27,439 INFO L225 Difference]: With dead ends: 572 [2022-07-14 07:05:27,439 INFO L226 Difference]: Without dead ends: 572 [2022-07-14 07:05:27,439 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 07:05:27,440 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 178 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:27,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1748 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-07-14 07:05:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 542. [2022-07-14 07:05:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 459 states have (on average 1.2723311546840959) internal successors, (584), 465 states have internal predecessors, (584), 48 states have call successors, (48), 27 states have call predecessors, (48), 34 states have return successors, (60), 49 states have call predecessors, (60), 44 states have call successors, (60) [2022-07-14 07:05:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 692 transitions. [2022-07-14 07:05:27,447 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 692 transitions. Word has length 56 [2022-07-14 07:05:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:27,448 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 692 transitions. [2022-07-14 07:05:27,448 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 07:05:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 692 transitions. [2022-07-14 07:05:27,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:05:27,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:27,449 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 07:05:27,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-14 07:05:27,449 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1818051724, now seen corresponding path program 1 times [2022-07-14 07:05:27,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:27,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204130286] [2022-07-14 07:05:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:27,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:27,572 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 07:05:27,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:27,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204130286] [2022-07-14 07:05:27,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204130286] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:27,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:27,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143724007] [2022-07-14 07:05:27,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:27,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:27,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:27,574 INFO L87 Difference]: Start difference. First operand 542 states and 692 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 07:05:28,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:28,208 INFO L93 Difference]: Finished difference Result 594 states and 756 transitions. [2022-07-14 07:05:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:28,208 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 07:05:28,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:28,210 INFO L225 Difference]: With dead ends: 594 [2022-07-14 07:05:28,210 INFO L226 Difference]: Without dead ends: 567 [2022-07-14 07:05:28,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:28,210 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 266 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3198 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:28,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 3198 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:28,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-07-14 07:05:28,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 537. [2022-07-14 07:05:28,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 455 states have (on average 1.268131868131868) internal successors, (577), 461 states have internal predecessors, (577), 47 states have call successors, (47), 27 states have call predecessors, (47), 34 states have return successors, (58), 48 states have call predecessors, (58), 43 states have call successors, (58) [2022-07-14 07:05:28,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 682 transitions. [2022-07-14 07:05:28,218 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 682 transitions. Word has length 56 [2022-07-14 07:05:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:28,218 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 682 transitions. [2022-07-14 07:05:28,218 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 07:05:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 682 transitions. [2022-07-14 07:05:28,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 07:05:28,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:28,219 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 07:05:28,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-14 07:05:28,220 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:28,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:28,220 INFO L85 PathProgramCache]: Analyzing trace with hash -356987344, now seen corresponding path program 1 times [2022-07-14 07:05:28,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:28,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326213495] [2022-07-14 07:05:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:28,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,272 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 07:05:28,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:28,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326213495] [2022-07-14 07:05:28,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326213495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:28,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:28,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:28,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324577399] [2022-07-14 07:05:28,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:28,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:28,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:28,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:28,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:28,274 INFO L87 Difference]: Start difference. First operand 537 states and 682 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 07:05:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:28,666 INFO L93 Difference]: Finished difference Result 549 states and 699 transitions. [2022-07-14 07:05:28,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:28,666 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 07:05:28,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:28,668 INFO L225 Difference]: With dead ends: 549 [2022-07-14 07:05:28,668 INFO L226 Difference]: Without dead ends: 543 [2022-07-14 07:05:28,668 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 07:05:28,668 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 159 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:28,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1829 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:28,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-07-14 07:05:28,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 531. [2022-07-14 07:05:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 450 states have (on average 1.268888888888889) internal successors, (571), 456 states have internal predecessors, (571), 46 states have call successors, (46), 27 states have call predecessors, (46), 34 states have return successors, (57), 47 states have call predecessors, (57), 42 states have call successors, (57) [2022-07-14 07:05:28,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 674 transitions. [2022-07-14 07:05:28,675 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 674 transitions. Word has length 56 [2022-07-14 07:05:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:28,676 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 674 transitions. [2022-07-14 07:05:28,676 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 07:05:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 674 transitions. [2022-07-14 07:05:28,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 07:05:28,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:28,677 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] [2022-07-14 07:05:28,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-14 07:05:28,677 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:28,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:28,677 INFO L85 PathProgramCache]: Analyzing trace with hash -2107046685, now seen corresponding path program 1 times [2022-07-14 07:05:28,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:28,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478373991] [2022-07-14 07:05:28,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:28,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 07:05:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:28,790 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 07:05:28,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:28,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478373991] [2022-07-14 07:05:28,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478373991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:28,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:28,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:28,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821799929] [2022-07-14 07:05:28,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:28,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:28,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:28,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:28,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:28,792 INFO L87 Difference]: Start difference. First operand 531 states and 674 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 10 states have internal predecessors, (53), 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 07:05:29,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:29,447 INFO L93 Difference]: Finished difference Result 560 states and 710 transitions. [2022-07-14 07:05:29,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:29,448 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 10 states have internal predecessors, (53), 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 62 [2022-07-14 07:05:29,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:29,449 INFO L225 Difference]: With dead ends: 560 [2022-07-14 07:05:29,449 INFO L226 Difference]: Without dead ends: 541 [2022-07-14 07:05:29,449 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 07:05:29,449 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 304 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:29,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 2950 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-07-14 07:05:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 529. [2022-07-14 07:05:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 448 states have (on average 1.2678571428571428) internal successors, (568), 454 states have internal predecessors, (568), 46 states have call successors, (46), 27 states have call predecessors, (46), 34 states have return successors, (57), 47 states have call predecessors, (57), 42 states have call successors, (57) [2022-07-14 07:05:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 671 transitions. [2022-07-14 07:05:29,467 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 671 transitions. Word has length 62 [2022-07-14 07:05:29,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:29,468 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 671 transitions. [2022-07-14 07:05:29,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 10 states have internal predecessors, (53), 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 07:05:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 671 transitions. [2022-07-14 07:05:29,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-14 07:05:29,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:29,469 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] [2022-07-14 07:05:29,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-14 07:05:29,469 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:29,470 INFO L85 PathProgramCache]: Analyzing trace with hash -790506152, now seen corresponding path program 1 times [2022-07-14 07:05:29,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:29,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868173177] [2022-07-14 07:05:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:29,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,526 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 07:05:29,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:29,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868173177] [2022-07-14 07:05:29,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868173177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:29,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:29,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:29,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235166119] [2022-07-14 07:05:29,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:29,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:29,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:29,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:29,528 INFO L87 Difference]: Start difference. First operand 529 states and 671 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 07:05:29,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:29,905 INFO L93 Difference]: Finished difference Result 533 states and 675 transitions. [2022-07-14 07:05:29,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:29,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2022-07-14 07:05:29,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:29,907 INFO L225 Difference]: With dead ends: 533 [2022-07-14 07:05:29,907 INFO L226 Difference]: Without dead ends: 525 [2022-07-14 07:05:29,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 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 07:05:29,907 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 159 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:29,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 1693 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:29,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-07-14 07:05:29,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 513. [2022-07-14 07:05:29,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 435 states have (on average 1.264367816091954) internal successors, (550), 441 states have internal predecessors, (550), 43 states have call successors, (43), 27 states have call predecessors, (43), 34 states have return successors, (53), 44 states have call predecessors, (53), 39 states have call successors, (53) [2022-07-14 07:05:29,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 646 transitions. [2022-07-14 07:05:29,914 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 646 transitions. Word has length 63 [2022-07-14 07:05:29,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:29,914 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 646 transitions. [2022-07-14 07:05:29,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 07:05:29,914 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 646 transitions. [2022-07-14 07:05:29,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:29,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:29,915 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 07:05:29,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-14 07:05:29,916 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:29,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1208974705, now seen corresponding path program 1 times [2022-07-14 07:05:29,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:29,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936690682] [2022-07-14 07:05:29,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:29,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 07:05:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 07:05:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:29,985 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 07:05:29,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:29,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936690682] [2022-07-14 07:05:29,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936690682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:29,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:29,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:29,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441758759] [2022-07-14 07:05:29,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:29,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:29,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:29,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:29,987 INFO L87 Difference]: Start difference. First operand 513 states and 646 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 07:05:30,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:30,258 INFO L93 Difference]: Finished difference Result 524 states and 660 transitions. [2022-07-14 07:05:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:30,259 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 07:05:30,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:30,260 INFO L225 Difference]: With dead ends: 524 [2022-07-14 07:05:30,260 INFO L226 Difference]: Without dead ends: 512 [2022-07-14 07:05:30,260 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 07:05:30,260 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 176 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:30,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1452 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:30,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-07-14 07:05:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 500. [2022-07-14 07:05:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 423 states have (on average 1.260047281323877) internal successors, (533), 429 states have internal predecessors, (533), 42 states have call successors, (42), 27 states have call predecessors, (42), 34 states have return successors, (52), 43 states have call predecessors, (52), 38 states have call successors, (52) [2022-07-14 07:05:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 627 transitions. [2022-07-14 07:05:30,266 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 627 transitions. Word has length 58 [2022-07-14 07:05:30,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:30,267 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 627 transitions. [2022-07-14 07:05:30,267 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 07:05:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 627 transitions. [2022-07-14 07:05:30,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:30,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:30,268 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 07:05:30,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-14 07:05:30,268 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:30,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:30,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1375988349, now seen corresponding path program 1 times [2022-07-14 07:05:30,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:30,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184789431] [2022-07-14 07:05:30,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:30,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:30,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:30,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:30,395 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 07:05:30,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:30,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184789431] [2022-07-14 07:05:30,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184789431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:30,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:30,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:30,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456373342] [2022-07-14 07:05:30,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:30,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:30,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:30,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:30,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:30,396 INFO L87 Difference]: Start difference. First operand 500 states and 627 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 07:05:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:31,534 INFO L93 Difference]: Finished difference Result 932 states and 1172 transitions. [2022-07-14 07:05:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-14 07:05:31,535 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 07:05:31,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:31,537 INFO L225 Difference]: With dead ends: 932 [2022-07-14 07:05:31,538 INFO L226 Difference]: Without dead ends: 903 [2022-07-14 07:05:31,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=253, Invalid=1153, Unknown=0, NotChecked=0, Total=1406 [2022-07-14 07:05:31,538 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 691 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:31,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 2310 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:31,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2022-07-14 07:05:31,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 694. [2022-07-14 07:05:31,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 583 states have (on average 1.2727272727272727) internal successors, (742), 595 states have internal predecessors, (742), 59 states have call successors, (59), 40 states have call predecessors, (59), 51 states have return successors, (77), 58 states have call predecessors, (77), 55 states have call successors, (77) [2022-07-14 07:05:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 878 transitions. [2022-07-14 07:05:31,548 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 878 transitions. Word has length 58 [2022-07-14 07:05:31,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:31,548 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 878 transitions. [2022-07-14 07:05:31,548 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 07:05:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 878 transitions. [2022-07-14 07:05:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:31,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:31,550 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, 1, 1, 1] [2022-07-14 07:05:31,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-14 07:05:31,550 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:31,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:31,550 INFO L85 PathProgramCache]: Analyzing trace with hash -2042959941, now seen corresponding path program 1 times [2022-07-14 07:05:31,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:31,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862373578] [2022-07-14 07:05:31,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:31,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:31,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:31,605 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 07:05:31,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:31,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862373578] [2022-07-14 07:05:31,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862373578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:31,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:31,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323633804] [2022-07-14 07:05:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:31,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:31,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:31,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:31,607 INFO L87 Difference]: Start difference. First operand 694 states and 878 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 07:05:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:32,129 INFO L93 Difference]: Finished difference Result 920 states and 1159 transitions. [2022-07-14 07:05:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:32,129 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 07:05:32,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:32,131 INFO L225 Difference]: With dead ends: 920 [2022-07-14 07:05:32,131 INFO L226 Difference]: Without dead ends: 920 [2022-07-14 07:05:32,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:32,131 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 1048 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:32,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 1669 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2022-07-14 07:05:32,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 513. [2022-07-14 07:05:32,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 435 states have (on average 1.2551724137931035) internal successors, (546), 440 states have internal predecessors, (546), 42 states have call successors, (42), 29 states have call predecessors, (42), 35 states have return successors, (52), 43 states have call predecessors, (52), 38 states have call successors, (52) [2022-07-14 07:05:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 640 transitions. [2022-07-14 07:05:32,140 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 640 transitions. Word has length 58 [2022-07-14 07:05:32,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:32,140 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 640 transitions. [2022-07-14 07:05:32,140 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 07:05:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 640 transitions. [2022-07-14 07:05:32,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-14 07:05:32,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:32,141 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 07:05:32,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-14 07:05:32,141 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:32,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1970957845, now seen corresponding path program 1 times [2022-07-14 07:05:32,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:32,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545304461] [2022-07-14 07:05:32,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:32,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 07:05:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 07:05:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,282 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 07:05:32,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:32,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545304461] [2022-07-14 07:05:32,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545304461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:32,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:32,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119288497] [2022-07-14 07:05:32,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:32,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:32,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:32,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:32,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:32,284 INFO L87 Difference]: Start difference. First operand 513 states and 640 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 07:05:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:32,932 INFO L93 Difference]: Finished difference Result 539 states and 671 transitions. [2022-07-14 07:05:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:32,932 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 07:05:32,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:32,933 INFO L225 Difference]: With dead ends: 539 [2022-07-14 07:05:32,933 INFO L226 Difference]: Without dead ends: 504 [2022-07-14 07:05:32,934 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 07:05:32,934 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 218 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:32,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 2683 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:32,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-07-14 07:05:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 492. [2022-07-14 07:05:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 419 states have (on average 1.2553699284009547) internal successors, (526), 424 states have internal predecessors, (526), 38 states have call successors, (38), 28 states have call predecessors, (38), 34 states have return successors, (47), 39 states have call predecessors, (47), 34 states have call successors, (47) [2022-07-14 07:05:32,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 611 transitions. [2022-07-14 07:05:32,940 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 611 transitions. Word has length 60 [2022-07-14 07:05:32,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:32,940 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 611 transitions. [2022-07-14 07:05:32,941 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 07:05:32,941 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 611 transitions. [2022-07-14 07:05:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 07:05:32,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:32,942 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 07:05:32,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-14 07:05:32,942 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:32,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:32,943 INFO L85 PathProgramCache]: Analyzing trace with hash 789888525, now seen corresponding path program 1 times [2022-07-14 07:05:32,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:32,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759023577] [2022-07-14 07:05:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:32,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 07:05:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:32,986 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 07:05:32,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:32,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759023577] [2022-07-14 07:05:32,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759023577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:32,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:32,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846372516] [2022-07-14 07:05:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:32,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:32,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:32,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:32,989 INFO L87 Difference]: Start difference. First operand 492 states and 611 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 07:05:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:33,155 INFO L93 Difference]: Finished difference Result 502 states and 623 transitions. [2022-07-14 07:05:33,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:33,155 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 07:05:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:33,156 INFO L225 Difference]: With dead ends: 502 [2022-07-14 07:05:33,156 INFO L226 Difference]: Without dead ends: 496 [2022-07-14 07:05:33,156 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 07:05:33,157 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 148 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:33,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1228 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-14 07:05:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 484. [2022-07-14 07:05:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 412 states have (on average 1.2548543689320388) internal successors, (517), 417 states have internal predecessors, (517), 37 states have call successors, (37), 28 states have call predecessors, (37), 34 states have return successors, (45), 38 states have call predecessors, (45), 33 states have call successors, (45) [2022-07-14 07:05:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 599 transitions. [2022-07-14 07:05:33,162 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 599 transitions. Word has length 58 [2022-07-14 07:05:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:33,162 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 599 transitions. [2022-07-14 07:05:33,162 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 07:05:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 599 transitions. [2022-07-14 07:05:33,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-14 07:05:33,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:33,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-07-14 07:05:33,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-14 07:05:33,163 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:33,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2051318318, now seen corresponding path program 1 times [2022-07-14 07:05:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:33,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238641469] [2022-07-14 07:05:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:33,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 07:05:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 07:05:33,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:33,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238641469] [2022-07-14 07:05:33,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238641469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:33,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:33,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:33,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404638218] [2022-07-14 07:05:33,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:33,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:33,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:33,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:33,211 INFO L87 Difference]: Start difference. First operand 484 states and 599 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (4), 3 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 07:05:33,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:33,373 INFO L93 Difference]: Finished difference Result 496 states and 614 transitions. [2022-07-14 07:05:33,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:33,374 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), 2 states have call successors, (4), 3 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 60 [2022-07-14 07:05:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:33,375 INFO L225 Difference]: With dead ends: 496 [2022-07-14 07:05:33,375 INFO L226 Difference]: Without dead ends: 486 [2022-07-14 07:05:33,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 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 07:05:33,375 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 148 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:33,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1193 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-07-14 07:05:33,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 474. [2022-07-14 07:05:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 404 states have (on average 1.254950495049505) internal successors, (507), 409 states have internal predecessors, (507), 35 states have call successors, (35), 28 states have call predecessors, (35), 34 states have return successors, (43), 36 states have call predecessors, (43), 31 states have call successors, (43) [2022-07-14 07:05:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 585 transitions. [2022-07-14 07:05:33,381 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 585 transitions. Word has length 60 [2022-07-14 07:05:33,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:33,381 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 585 transitions. [2022-07-14 07:05:33,381 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), 2 states have call successors, (4), 3 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 07:05:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 585 transitions. [2022-07-14 07:05:33,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-14 07:05:33,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:33,382 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 07:05:33,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-14 07:05:33,382 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1819248512, now seen corresponding path program 1 times [2022-07-14 07:05:33,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:33,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851807983] [2022-07-14 07:05:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:33,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:33,510 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 07:05:33,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:33,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851807983] [2022-07-14 07:05:33,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851807983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:33,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:33,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:33,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477765823] [2022-07-14 07:05:33,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:33,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:33,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:33,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:33,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:33,512 INFO L87 Difference]: Start difference. First operand 474 states and 585 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 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 07:05:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:34,302 INFO L93 Difference]: Finished difference Result 765 states and 956 transitions. [2022-07-14 07:05:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 07:05:34,303 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 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 60 [2022-07-14 07:05:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:34,304 INFO L225 Difference]: With dead ends: 765 [2022-07-14 07:05:34,304 INFO L226 Difference]: Without dead ends: 732 [2022-07-14 07:05:34,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-07-14 07:05:34,305 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 607 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:34,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2881 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-14 07:05:34,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 368. [2022-07-14 07:05:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 310 states have (on average 1.270967741935484) internal successors, (394), 314 states have internal predecessors, (394), 30 states have call successors, (30), 24 states have call predecessors, (30), 27 states have return successors, (36), 29 states have call predecessors, (36), 27 states have call successors, (36) [2022-07-14 07:05:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 460 transitions. [2022-07-14 07:05:34,309 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 460 transitions. Word has length 60 [2022-07-14 07:05:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:34,310 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 460 transitions. [2022-07-14 07:05:34,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 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 07:05:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 460 transitions. [2022-07-14 07:05:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-14 07:05:34,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:34,311 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 07:05:34,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-14 07:05:34,311 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:34,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1463057072, now seen corresponding path program 1 times [2022-07-14 07:05:34,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:34,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362697658] [2022-07-14 07:05:34,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:34,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 07:05:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,450 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 07:05:34,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:34,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362697658] [2022-07-14 07:05:34,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362697658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:34,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:34,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:34,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950615420] [2022-07-14 07:05:34,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:34,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:34,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:34,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:34,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:34,451 INFO L87 Difference]: Start difference. First operand 368 states and 460 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:34,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:34,774 INFO L93 Difference]: Finished difference Result 373 states and 465 transitions. [2022-07-14 07:05:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:34,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2022-07-14 07:05:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:34,775 INFO L225 Difference]: With dead ends: 373 [2022-07-14 07:05:34,776 INFO L226 Difference]: Without dead ends: 373 [2022-07-14 07:05:34,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:34,776 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 113 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:34,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1209 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:34,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-07-14 07:05:34,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 361. [2022-07-14 07:05:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 303 states have (on average 1.2640264026402641) internal successors, (383), 307 states have internal predecessors, (383), 30 states have call successors, (30), 24 states have call predecessors, (30), 27 states have return successors, (36), 29 states have call predecessors, (36), 27 states have call successors, (36) [2022-07-14 07:05:34,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 449 transitions. [2022-07-14 07:05:34,781 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 449 transitions. Word has length 64 [2022-07-14 07:05:34,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:34,781 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 449 transitions. [2022-07-14 07:05:34,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:34,781 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 449 transitions. [2022-07-14 07:05:34,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 07:05:34,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:34,782 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-07-14 07:05:34,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-14 07:05:34,782 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:34,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:34,782 INFO L85 PathProgramCache]: Analyzing trace with hash 659665596, now seen corresponding path program 1 times [2022-07-14 07:05:34,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:34,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607411520] [2022-07-14 07:05:34,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:34,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 07:05:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 07:05:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 07:05:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 07:05:34,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:34,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607411520] [2022-07-14 07:05:34,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607411520] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 07:05:34,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864552735] [2022-07-14 07:05:34,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:34,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 07:05:34,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:05:34,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 07:05:34,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 07:05:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:35,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:35,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:35,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:35,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864552735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:35,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 07:05:35,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-07-14 07:05:35,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179670269] [2022-07-14 07:05:35,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:35,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:35,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:35,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:35,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:35,119 INFO L87 Difference]: Start difference. First operand 361 states and 449 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 07:05:35,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:35,141 INFO L93 Difference]: Finished difference Result 346 states and 431 transitions. [2022-07-14 07:05:35,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:35,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 62 [2022-07-14 07:05:35,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:35,143 INFO L225 Difference]: With dead ends: 346 [2022-07-14 07:05:35,143 INFO L226 Difference]: Without dead ends: 332 [2022-07-14 07:05:35,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:35,143 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:35,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 917 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-14 07:05:35,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-07-14 07:05:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 280 states have (on average 1.275) internal successors, (357), 283 states have internal predecessors, (357), 27 states have call successors, (27), 22 states have call predecessors, (27), 24 states have return successors, (32), 26 states have call predecessors, (32), 24 states have call successors, (32) [2022-07-14 07:05:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 416 transitions. [2022-07-14 07:05:35,147 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 416 transitions. Word has length 62 [2022-07-14 07:05:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:35,148 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 416 transitions. [2022-07-14 07:05:35,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 07:05:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 416 transitions. [2022-07-14 07:05:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-14 07:05:35,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:35,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:35,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:35,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-07-14 07:05:35,372 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:35,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:35,373 INFO L85 PathProgramCache]: Analyzing trace with hash -747836141, now seen corresponding path program 1 times [2022-07-14 07:05:35,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:35,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785594379] [2022-07-14 07:05:35,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:35,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:35,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 07:05:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:35,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:35,536 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 07:05:35,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:35,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785594379] [2022-07-14 07:05:35,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785594379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:35,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:35,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-14 07:05:35,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489947050] [2022-07-14 07:05:35,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:35,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 07:05:35,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 07:05:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:35,538 INFO L87 Difference]: Start difference. First operand 332 states and 416 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 07:05:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:36,136 INFO L93 Difference]: Finished difference Result 343 states and 430 transitions. [2022-07-14 07:05:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:36,136 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 07:05:36,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:36,137 INFO L225 Difference]: With dead ends: 343 [2022-07-14 07:05:36,137 INFO L226 Difference]: Without dead ends: 270 [2022-07-14 07:05:36,138 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 07:05:36,138 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 154 mSDsluCounter, 1488 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:36,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1699 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-14 07:05:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 264. [2022-07-14 07:05:36,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 220 states have (on average 1.3) internal successors, (286), 222 states have internal predecessors, (286), 22 states have call successors, (22), 19 states have call predecessors, (22), 21 states have return successors, (28), 22 states have call predecessors, (28), 20 states have call successors, (28) [2022-07-14 07:05:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 336 transitions. [2022-07-14 07:05:36,141 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 336 transitions. Word has length 64 [2022-07-14 07:05:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:36,141 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 336 transitions. [2022-07-14 07:05:36,142 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 07:05:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 336 transitions. [2022-07-14 07:05:36,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-14 07:05:36,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:36,142 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, 1, 1] [2022-07-14 07:05:36,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-14 07:05:36,143 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:36,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:36,143 INFO L85 PathProgramCache]: Analyzing trace with hash 611039127, now seen corresponding path program 1 times [2022-07-14 07:05:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:36,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485485119] [2022-07-14 07:05:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:36,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,268 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 07:05:36,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:36,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485485119] [2022-07-14 07:05:36,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485485119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:36,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:36,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:36,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401708736] [2022-07-14 07:05:36,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:36,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:36,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:36,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:36,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:36,270 INFO L87 Difference]: Start difference. First operand 264 states and 336 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 07:05:36,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:36,584 INFO L93 Difference]: Finished difference Result 270 states and 342 transitions. [2022-07-14 07:05:36,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:36,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2022-07-14 07:05:36,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:36,586 INFO L225 Difference]: With dead ends: 270 [2022-07-14 07:05:36,586 INFO L226 Difference]: Without dead ends: 270 [2022-07-14 07:05:36,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:05:36,586 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 192 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:36,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 799 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-14 07:05:36,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 264. [2022-07-14 07:05:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 220 states have (on average 1.2954545454545454) internal successors, (285), 222 states have internal predecessors, (285), 22 states have call successors, (22), 19 states have call predecessors, (22), 21 states have return successors, (28), 22 states have call predecessors, (28), 20 states have call successors, (28) [2022-07-14 07:05:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 335 transitions. [2022-07-14 07:05:36,590 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 335 transitions. Word has length 68 [2022-07-14 07:05:36,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:36,590 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 335 transitions. [2022-07-14 07:05:36,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 07:05:36,590 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 335 transitions. [2022-07-14 07:05:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-14 07:05:36,591 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:36,591 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, 1, 1, 1, 1] [2022-07-14 07:05:36,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-14 07:05:36,591 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:36,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash -993138030, now seen corresponding path program 1 times [2022-07-14 07:05:36,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:36,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953719672] [2022-07-14 07:05:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:36,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,683 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 07:05:36,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:36,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953719672] [2022-07-14 07:05:36,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953719672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:36,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:36,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:36,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939804730] [2022-07-14 07:05:36,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:36,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:36,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:36,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:36,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:36,685 INFO L87 Difference]: Start difference. First operand 264 states and 335 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 07:05:36,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:36,889 INFO L93 Difference]: Finished difference Result 216 states and 264 transitions. [2022-07-14 07:05:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:36,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2022-07-14 07:05:36,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:36,890 INFO L225 Difference]: With dead ends: 216 [2022-07-14 07:05:36,890 INFO L226 Difference]: Without dead ends: 216 [2022-07-14 07:05:36,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:36,891 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 97 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:36,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 660 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:36,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-07-14 07:05:36,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 175. [2022-07-14 07:05:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 145 states have (on average 1.2344827586206897) internal successors, (179), 146 states have internal predecessors, (179), 15 states have call successors, (15), 13 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 14 states have call successors, (17) [2022-07-14 07:05:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2022-07-14 07:05:36,894 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 70 [2022-07-14 07:05:36,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:36,894 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2022-07-14 07:05:36,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 07:05:36,894 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2022-07-14 07:05:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 07:05:36,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:36,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:36,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-14 07:05:36,896 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:36,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:36,896 INFO L85 PathProgramCache]: Analyzing trace with hash -365687255, now seen corresponding path program 1 times [2022-07-14 07:05:36,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:36,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170429454] [2022-07-14 07:05:36,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:36,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 07:05:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:36,996 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 07:05:36,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:36,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170429454] [2022-07-14 07:05:36,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170429454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:36,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:36,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:36,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116572033] [2022-07-14 07:05:36,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:36,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:36,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:36,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:36,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:36,997 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 07:05:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:37,259 INFO L93 Difference]: Finished difference Result 221 states and 263 transitions. [2022-07-14 07:05:37,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 07:05:37,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2022-07-14 07:05:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:37,261 INFO L225 Difference]: With dead ends: 221 [2022-07-14 07:05:37,261 INFO L226 Difference]: Without dead ends: 185 [2022-07-14 07:05:37,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:37,261 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 198 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:37,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 899 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:37,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-07-14 07:05:37,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 173. [2022-07-14 07:05:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 143 states have (on average 1.2027972027972027) internal successors, (172), 144 states have internal predecessors, (172), 15 states have call successors, (15), 13 states have call predecessors, (15), 14 states have return successors, (17), 15 states have call predecessors, (17), 14 states have call successors, (17) [2022-07-14 07:05:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 204 transitions. [2022-07-14 07:05:37,264 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 204 transitions. Word has length 84 [2022-07-14 07:05:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:37,264 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 204 transitions. [2022-07-14 07:05:37,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 07:05:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 204 transitions. [2022-07-14 07:05:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-14 07:05:37,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:37,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:37,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-14 07:05:37,265 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:37,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:37,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1430253116, now seen corresponding path program 1 times [2022-07-14 07:05:37,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:37,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162961522] [2022-07-14 07:05:37,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:37,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 07:05:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 07:05:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,366 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 07:05:37,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:37,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162961522] [2022-07-14 07:05:37,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162961522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:37,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:37,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:37,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737678951] [2022-07-14 07:05:37,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:37,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:37,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:37,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:37,367 INFO L87 Difference]: Start difference. First operand 173 states and 204 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 07:05:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:37,593 INFO L93 Difference]: Finished difference Result 198 states and 231 transitions. [2022-07-14 07:05:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:37,594 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 86 [2022-07-14 07:05:37,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:37,594 INFO L225 Difference]: With dead ends: 198 [2022-07-14 07:05:37,595 INFO L226 Difference]: Without dead ends: 153 [2022-07-14 07:05:37,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-14 07:05:37,595 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 88 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:37,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 863 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:37,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-07-14 07:05:37,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2022-07-14 07:05:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 116 states have (on average 1.1637931034482758) internal successors, (135), 117 states have internal predecessors, (135), 12 states have call successors, (12), 11 states have call predecessors, (12), 12 states have return successors, (13), 12 states have call predecessors, (13), 11 states have call successors, (13) [2022-07-14 07:05:37,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2022-07-14 07:05:37,597 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 86 [2022-07-14 07:05:37,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:37,597 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2022-07-14 07:05:37,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (8), 6 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 07:05:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2022-07-14 07:05:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 07:05:37,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:37,598 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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 07:05:37,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-14 07:05:37,598 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:37,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash -336818959, now seen corresponding path program 1 times [2022-07-14 07:05:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:37,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697529793] [2022-07-14 07:05:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:37,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:05:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 07:05:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 07:05:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 07:05:37,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:37,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697529793] [2022-07-14 07:05:37,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697529793] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 07:05:37,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826422689] [2022-07-14 07:05:37,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:37,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 07:05:37,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:05:37,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 07:05:37,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 07:05:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:37,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 07:05:37,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-14 07:05:37,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:37,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826422689] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:37,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 07:05:37,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-07-14 07:05:37,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717486302] [2022-07-14 07:05:37,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:37,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:37,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:37,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:37,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:37,890 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:37,897 INFO L93 Difference]: Finished difference Result 170 states and 195 transitions. [2022-07-14 07:05:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:37,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2022-07-14 07:05:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:37,898 INFO L225 Difference]: With dead ends: 170 [2022-07-14 07:05:37,898 INFO L226 Difference]: Without dead ends: 170 [2022-07-14 07:05:37,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:37,899 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 16 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:37,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 236 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-07-14 07:05:37,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 151. [2022-07-14 07:05:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.152) internal successors, (144), 125 states have internal predecessors, (144), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-14 07:05:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 172 transitions. [2022-07-14 07:05:37,902 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 172 transitions. Word has length 103 [2022-07-14 07:05:37,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:37,902 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 172 transitions. [2022-07-14 07:05:37,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:37,902 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 172 transitions. [2022-07-14 07:05:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 07:05:37,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:37,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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 07:05:37,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:38,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2022-07-14 07:05:38,127 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:38,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1586409075, now seen corresponding path program 1 times [2022-07-14 07:05:38,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:38,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558260826] [2022-07-14 07:05:38,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:38,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 07:05:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-14 07:05:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 07:05:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 07:05:38,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:38,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558260826] [2022-07-14 07:05:38,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558260826] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 07:05:38,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268081789] [2022-07-14 07:05:38,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:38,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 07:05:38,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:05:38,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 07:05:38,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 07:05:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 07:05:38,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 07:05:38,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:38,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268081789] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:38,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 07:05:38,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-07-14 07:05:38,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063821649] [2022-07-14 07:05:38,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:38,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:38,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:38,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:38,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-14 07:05:38,413 INFO L87 Difference]: Start difference. First operand 151 states and 172 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 07:05:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:38,482 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2022-07-14 07:05:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:38,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-07-14 07:05:38,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:38,483 INFO L225 Difference]: With dead ends: 151 [2022-07-14 07:05:38,483 INFO L226 Difference]: Without dead ends: 151 [2022-07-14 07:05:38,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:38,483 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 144 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:38,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 214 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:38,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-07-14 07:05:38,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-07-14 07:05:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.136) internal successors, (142), 125 states have internal predecessors, (142), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-14 07:05:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 170 transitions. [2022-07-14 07:05:38,486 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 170 transitions. Word has length 103 [2022-07-14 07:05:38,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:38,486 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 170 transitions. [2022-07-14 07:05:38,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-14 07:05:38,486 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 170 transitions. [2022-07-14 07:05:38,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-14 07:05:38,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:38,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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 07:05:38,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 07:05:38,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 07:05:38,710 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:38,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash 631465488, now seen corresponding path program 1 times [2022-07-14 07:05:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:38,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167140276] [2022-07-14 07:05:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:38,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 07:05:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 07:05:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:38,827 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 07:05:38,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:38,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167140276] [2022-07-14 07:05:38,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167140276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:38,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:38,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 07:05:38,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348566397] [2022-07-14 07:05:38,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:38,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 07:05:38,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:38,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 07:05:38,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:38,828 INFO L87 Difference]: Start difference. First operand 151 states and 170 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:39,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:39,143 INFO L93 Difference]: Finished difference Result 259 states and 285 transitions. [2022-07-14 07:05:39,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 07:05:39,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104 [2022-07-14 07:05:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:39,144 INFO L225 Difference]: With dead ends: 259 [2022-07-14 07:05:39,144 INFO L226 Difference]: Without dead ends: 151 [2022-07-14 07:05:39,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-07-14 07:05:39,145 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 205 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:39,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 644 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:39,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-07-14 07:05:39,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-07-14 07:05:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.128) internal successors, (141), 125 states have internal predecessors, (141), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-14 07:05:39,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 169 transitions. [2022-07-14 07:05:39,147 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 169 transitions. Word has length 104 [2022-07-14 07:05:39,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:39,147 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 169 transitions. [2022-07-14 07:05:39,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:39,147 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 169 transitions. [2022-07-14 07:05:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-14 07:05:39,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:39,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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 07:05:39,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-14 07:05:39,148 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:39,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:39,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1542761419, now seen corresponding path program 1 times [2022-07-14 07:05:39,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:39,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007820613] [2022-07-14 07:05:39,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:39,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 07:05:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 07:05:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 07:05:39,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:39,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007820613] [2022-07-14 07:05:39,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007820613] 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 [8] imperfect sequences [] total 8 [2022-07-14 07:05:39,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842536243] [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 8 states [2022-07-14 07:05:39,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:39,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:39,248 INFO L87 Difference]: Start difference. First operand 151 states and 169 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:39,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:39,399 INFO L93 Difference]: Finished difference Result 170 states and 188 transitions. [2022-07-14 07:05:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:39,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104 [2022-07-14 07:05:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:39,400 INFO L225 Difference]: With dead ends: 170 [2022-07-14 07:05:39,400 INFO L226 Difference]: Without dead ends: 170 [2022-07-14 07:05:39,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:39,400 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 92 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:39,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 487 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-07-14 07:05:39,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 151. [2022-07-14 07:05:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 125 states have (on average 1.096) internal successors, (137), 125 states have internal predecessors, (137), 13 states have call successors, (13), 11 states have call predecessors, (13), 12 states have return successors, (15), 14 states have call predecessors, (15), 12 states have call successors, (15) [2022-07-14 07:05:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2022-07-14 07:05:39,403 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 104 [2022-07-14 07:05:39,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:39,403 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2022-07-14 07:05:39,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (10), 6 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:39,403 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2022-07-14 07:05:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-14 07:05:39,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:39,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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 07:05:39,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-14 07:05:39,404 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:39,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:39,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1766005042, now seen corresponding path program 1 times [2022-07-14 07:05:39,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:39,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191316150] [2022-07-14 07:05:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:39,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 07:05:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 07:05:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 07:05:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 07:05:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 07:05:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 07:05:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:39,535 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 07:05:39,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:39,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191316150] [2022-07-14 07:05:39,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191316150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:39,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:39,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-14 07:05:39,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234759735] [2022-07-14 07:05:39,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:39,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 07:05:39,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:39,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 07:05:39,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:39,536 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:39,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:39,856 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2022-07-14 07:05:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104 [2022-07-14 07:05:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:39,857 INFO L225 Difference]: With dead ends: 148 [2022-07-14 07:05:39,857 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 07:05:39,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2022-07-14 07:05:39,857 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 189 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:39,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 633 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 07:05:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 07:05:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 07:05:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 07:05:39,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2022-07-14 07:05:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:39,858 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 07:05:39,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.571428571428571) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 07:05:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 07:05:39,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 07:05:39,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-14 07:05:39,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-14 07:05:39,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-14 07:05:39,863 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] [2022-07-14 07:05:39,865 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 07:05:39,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 07:05:39 BoogieIcfgContainer [2022-07-14 07:05:39,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 07:05:39,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 07:05:39,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 07:05:39,869 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 07:05:39,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:00" (3/4) ... [2022-07-14 07:05:39,872 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure SendSrbSynchronous [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeSetEvent [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioSignalCompletion [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure AG_SetStatusAndReturn [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stubMoreProcessingRequired [2022-07-14 07:05:39,878 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioSendToNextDriver [2022-07-14 07:05:39,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioIsPlayActive [2022-07-14 07:05:39,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeWaitForSingleObject [2022-07-14 07:05:39,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2022-07-14 07:05:39,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure CdAudioForwardIrpSynchronous [2022-07-14 07:05:39,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure HPCdrCompletion [2022-07-14 07:05:39,912 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2022-07-14 07:05:39,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-07-14 07:05:39,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-14 07:05:39,920 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-14 07:05:40,043 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 07:05:40,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 07:05:40,043 INFO L158 Benchmark]: Toolchain (without parser) took 41510.42ms. Allocated memory was 90.2MB in the beginning and 249.6MB in the end (delta: 159.4MB). Free memory was 55.0MB in the beginning and 108.4MB in the end (delta: -53.4MB). Peak memory consumption was 107.0MB. Max. memory is 16.1GB. [2022-07-14 07:05:40,043 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 44.0MB in the beginning and 43.9MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:05:40,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.78ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 68.1MB in the end (delta: -13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 07:05:40,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.03ms. Allocated memory is still 111.1MB. Free memory was 68.1MB in the beginning and 61.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 07:05:40,044 INFO L158 Benchmark]: Boogie Preprocessor took 59.51ms. Allocated memory is still 111.1MB. Free memory was 61.4MB in the beginning and 56.7MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 07:05:40,044 INFO L158 Benchmark]: RCFGBuilder took 1287.97ms. Allocated memory is still 111.1MB. Free memory was 56.2MB in the beginning and 60.5MB in the end (delta: -4.3MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2022-07-14 07:05:40,044 INFO L158 Benchmark]: TraceAbstraction took 39373.12ms. Allocated memory was 111.1MB in the beginning and 249.6MB in the end (delta: 138.4MB). Free memory was 60.5MB in the beginning and 132.9MB in the end (delta: -72.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2022-07-14 07:05:40,045 INFO L158 Benchmark]: Witness Printer took 173.77ms. Allocated memory is still 249.6MB. Free memory was 132.9MB in the beginning and 108.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-14 07:05:40,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 44.0MB in the beginning and 43.9MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.78ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 54.8MB in the beginning and 68.1MB in the end (delta: -13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.03ms. Allocated memory is still 111.1MB. Free memory was 68.1MB in the beginning and 61.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.51ms. Allocated memory is still 111.1MB. Free memory was 61.4MB in the beginning and 56.7MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1287.97ms. Allocated memory is still 111.1MB. Free memory was 56.2MB in the beginning and 60.5MB in the end (delta: -4.3MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * TraceAbstraction took 39373.12ms. Allocated memory was 111.1MB in the beginning and 249.6MB in the end (delta: 138.4MB). Free memory was 60.5MB in the beginning and 132.9MB in the end (delta: -72.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Witness Printer took 173.77ms. Allocated memory is still 249.6MB. Free memory was 132.9MB in the beginning and 108.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. 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 - PositiveResult [Line: 59]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1717]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 469 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 39.3s, OverallIterations: 77, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22685 SdHoareTripleChecker+Valid, 25.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22218 mSDsluCounter, 166300 SdHoareTripleChecker+Invalid, 20.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129175 mSDsCounter, 5918 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45034 IncrementalHoareTripleChecker+Invalid, 50952 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5918 mSolverCounterUnsat, 37125 mSDtfsCounter, 45034 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1473 GetRequests, 685 SyntacticMatches, 4 SemanticMatches, 784 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred in iteration=10, InterpolantAutomatonStates: 685, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 77 MinimizatonAttempts, 3219 StatesRemovedByMinimization, 69 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 4160 NumberOfCodeBlocks, 4160 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 4080 ConstructedInterpolants, 0 QuantifiedInterpolants, 10477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1664 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 80 InterpolantComputations, 77 PerfectInterpolantSequences, 71/85 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-14 07:05:40,075 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: TRUE