./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.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/diskperf_simpl1.cil.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 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 07:04:58,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 07:04:58,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 07:04:58,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 07:04:58,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 07:04:58,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 07:04:58,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 07:04:58,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 07:04:58,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 07:04:58,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 07:04:58,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 07:04:58,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 07:04:58,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 07:04:58,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 07:04:58,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 07:04:58,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 07:04:58,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 07:04:58,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 07:04:58,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 07:04:58,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 07:04:58,079 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 07:04:58,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 07:04:58,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 07:04:58,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 07:04:58,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 07:04:58,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 07:04:58,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 07:04:58,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 07:04:58,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 07:04:58,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 07:04:58,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 07:04:58,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 07:04:58,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 07:04:58,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 07:04:58,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 07:04:58,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 07:04:58,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 07:04:58,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 07:04:58,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 07:04:58,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 07:04:58,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 07:04:58,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 07:04:58,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-14 07:04:58,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 07:04:58,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 07:04:58,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 07:04:58,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 07:04:58,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 07:04:58,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 07:04:58,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 07:04:58,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 07:04:58,137 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 07:04:58,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 07:04:58,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 07:04:58,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 07:04:58,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 07:04:58,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 07:04:58,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 07:04:58,140 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-14 07:04:58,140 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-14 07:04:58,140 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-14 07:04:58,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 07:04:58,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 07:04:58,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 07:04:58,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 07:04:58,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 07:04:58,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 07:04:58,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 07:04:58,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:04:58,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 07:04:58,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 07:04:58,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 07:04:58,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 07:04:58,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48b194ce99c1fa112b5c4d4ed6cc0216b9fbb33f6f6efd57d62e9c27b1f7eb5c [2022-07-14 07:04:58,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 07:04:58,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 07:04:58,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 07:04:58,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 07:04:58,422 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 07:04:58,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2022-07-14 07:04:58,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a69c0025d/0afda03957314e869e4609363053bd23/FLAG572f7e292 [2022-07-14 07:04:58,896 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 07:04:58,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/diskperf_simpl1.cil.c [2022-07-14 07:04:58,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a69c0025d/0afda03957314e869e4609363053bd23/FLAG572f7e292 [2022-07-14 07:04:58,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a69c0025d/0afda03957314e869e4609363053bd23 [2022-07-14 07:04:58,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 07:04:58,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 07:04:58,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 07:04:58,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 07:04:58,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 07:04:58,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:04:58" (1/1) ... [2022-07-14 07:04:58,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ad260d 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 07:04:58,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 07:04:58" (1/1) ... [2022-07-14 07:04:58,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 07:04:58,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 07:04:59,107 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/diskperf_simpl1.cil.c[2072,2085] [2022-07-14 07:04:59,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:04:59,235 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 07:04:59,247 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/diskperf_simpl1.cil.c[2072,2085] [2022-07-14 07:04:59,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 07:04:59,315 INFO L208 MainTranslator]: Completed translation [2022-07-14 07:04:59,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 07:04:59 WrapperNode [2022-07-14 07:04:59,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 07:04:59,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 07:04:59,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 07:04:59,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 07:04:59,326 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 07:04:59,349 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 07:04:59,406 INFO L137 Inliner]: procedures = 38, calls = 66, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 755 [2022-07-14 07:04:59,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 07:04:59,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 07:04:59,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 07:04:59,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 07:04:59,419 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 07:04:59,419 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 07:04:59,425 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 07:04:59,425 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 07:04:59,441 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 07:04:59,460 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 07:04:59,464 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 07:04:59,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 07:04:59,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 07:04:59,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 07:04:59,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 07:04:59,487 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 07:04:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 07:04:59,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:04:59,528 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 07:04:59,531 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 07:04:59,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 07:04:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-07-14 07:04:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-07-14 07:04:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-07-14 07:04:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-07-14 07:04:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-07-14 07:04:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-07-14 07:04:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-07-14 07:04:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-07-14 07:04:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2022-07-14 07:04:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2022-07-14 07:04:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-07-14 07:04:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-07-14 07:04:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 07:04:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-07-14 07:04:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-07-14 07:04:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2022-07-14 07:04:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2022-07-14 07:04:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2022-07-14 07:04:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2022-07-14 07:04:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 07:04:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 07:04:59,699 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 07:04:59,701 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 07:04:59,706 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,778 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-07-14 07:04:59,778 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-07-14 07:04:59,782 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,820 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-07-14 07:04:59,820 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-07-14 07:04:59,867 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,872 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:04:59,886 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:00,275 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-07-14 07:05:00,275 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-07-14 07:05:00,275 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-07-14 07:05:00,276 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-07-14 07:05:00,276 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2022-07-14 07:05:00,276 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2022-07-14 07:05:00,281 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-14 07:05:00,308 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-07-14 07:05:00,308 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-07-14 07:05:00,351 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 07:05:00,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 07:05:00,363 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 07:05:00,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 07:05:00 BoogieIcfgContainer [2022-07-14 07:05:00,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 07:05:00,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 07:05:00,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 07:05:00,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 07:05:00,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 07:04:58" (1/3) ... [2022-07-14 07:05:00,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346505ab 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 07:05:00,372 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 07:05:00,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346505ab 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 07:05:00,373 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 07:05:00,374 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf_simpl1.cil.c [2022-07-14 07:05:00,387 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 07:05:00,388 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 07:05:00,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 07:05:00,463 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@157ac76a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@56457eda [2022-07-14 07:05:00,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 07:05:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 188 states have (on average 1.4734042553191489) internal successors, (277), 206 states have internal predecessors, (277), 44 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) [2022-07-14 07:05:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 07:05:00,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:00,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:00,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:00,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1705481022, now seen corresponding path program 1 times [2022-07-14 07:05:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:00,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545687311] [2022-07-14 07:05:00,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:00,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:00,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:00,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545687311] [2022-07-14 07:05:00,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545687311] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:00,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:00,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:00,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397708666] [2022-07-14 07:05:00,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:00,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:00,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:00,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:00,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:00,724 INFO L87 Difference]: Start difference. First operand has 244 states, 188 states have (on average 1.4734042553191489) internal successors, (277), 206 states have internal predecessors, (277), 44 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 40 states have call predecessors, (44), 44 states have call successors, (44) 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 07:05:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:00,836 INFO L93 Difference]: Finished difference Result 417 states and 600 transitions. [2022-07-14 07:05:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:00,840 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 07:05:00,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:00,852 INFO L225 Difference]: With dead ends: 417 [2022-07-14 07:05:00,855 INFO L226 Difference]: Without dead ends: 413 [2022-07-14 07:05:00,857 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 07:05:00,860 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 328 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:00,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 619 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-14 07:05:00,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 397. [2022-07-14 07:05:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 316 states have (on average 1.4398734177215189) internal successors, (455), 328 states have internal predecessors, (455), 63 states have call successors, (63), 16 states have call predecessors, (63), 16 states have return successors, (61), 56 states have call predecessors, (61), 49 states have call successors, (61) [2022-07-14 07:05:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 579 transitions. [2022-07-14 07:05:00,942 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 579 transitions. Word has length 8 [2022-07-14 07:05:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:00,943 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 579 transitions. [2022-07-14 07:05:00,943 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 07:05:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 579 transitions. [2022-07-14 07:05:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 07:05:00,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:00,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:00,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 07:05:00,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:00,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:00,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1322410939, now seen corresponding path program 1 times [2022-07-14 07:05:00,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:00,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524414563] [2022-07-14 07:05:00,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:00,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:00,980 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 07:05:00,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:00,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524414563] [2022-07-14 07:05:00,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524414563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:00,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:00,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 07:05:00,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531416259] [2022-07-14 07:05:00,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:00,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:00,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:00,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:00,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:00,984 INFO L87 Difference]: Start difference. First operand 397 states and 579 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 07:05:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,029 INFO L93 Difference]: Finished difference Result 396 states and 578 transitions. [2022-07-14 07:05:01,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,030 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 07:05:01,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,033 INFO L225 Difference]: With dead ends: 396 [2022-07-14 07:05:01,033 INFO L226 Difference]: Without dead ends: 393 [2022-07-14 07:05:01,033 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 07:05:01,034 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 173 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 450 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:01,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-07-14 07:05:01,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-07-14 07:05:01,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 313 states have (on average 1.4089456869009584) internal successors, (441), 324 states have internal predecessors, (441), 63 states have call successors, (63), 16 states have call predecessors, (63), 16 states have return successors, (61), 56 states have call predecessors, (61), 49 states have call successors, (61) [2022-07-14 07:05:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 565 transitions. [2022-07-14 07:05:01,080 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 565 transitions. Word has length 9 [2022-07-14 07:05:01,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,081 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 565 transitions. [2022-07-14 07:05:01,081 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 07:05:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 565 transitions. [2022-07-14 07:05:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 07:05:01,082 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 07:05:01,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1925745618, now seen corresponding path program 1 times [2022-07-14 07:05:01,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786902764] [2022-07-14 07:05:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:01,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786902764] [2022-07-14 07:05:01,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786902764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414791874] [2022-07-14 07:05:01,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,157 INFO L87 Difference]: Start difference. First operand 393 states and 565 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 07:05:01,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,224 INFO L93 Difference]: Finished difference Result 396 states and 567 transitions. [2022-07-14 07:05:01,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,224 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 07:05:01,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,230 INFO L225 Difference]: With dead ends: 396 [2022-07-14 07:05:01,230 INFO L226 Difference]: Without dead ends: 393 [2022-07-14 07:05:01,231 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 07:05:01,236 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 0 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 617 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:01,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-07-14 07:05:01,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-07-14 07:05:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 313 states have (on average 1.4057507987220448) internal successors, (440), 324 states have internal predecessors, (440), 63 states have call successors, (63), 16 states have call predecessors, (63), 16 states have return successors, (61), 56 states have call predecessors, (61), 49 states have call successors, (61) [2022-07-14 07:05:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 564 transitions. [2022-07-14 07:05:01,271 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 564 transitions. Word has length 13 [2022-07-14 07:05:01,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,271 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 564 transitions. [2022-07-14 07:05:01,271 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 07:05:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 564 transitions. [2022-07-14 07:05:01,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 07:05:01,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:01,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 07:05:01,273 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1077867276, now seen corresponding path program 1 times [2022-07-14 07:05:01,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35354735] [2022-07-14 07:05:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,335 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 07:05:01,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35354735] [2022-07-14 07:05:01,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35354735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637304929] [2022-07-14 07:05:01,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,338 INFO L87 Difference]: Start difference. First operand 393 states and 564 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 07:05:01,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,448 INFO L93 Difference]: Finished difference Result 666 states and 990 transitions. [2022-07-14 07:05:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 15 [2022-07-14 07:05:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,457 INFO L225 Difference]: With dead ends: 666 [2022-07-14 07:05:01,458 INFO L226 Difference]: Without dead ends: 665 [2022-07-14 07:05:01,458 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 07:05:01,468 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 250 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 682 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:01,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-07-14 07:05:01,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 625. [2022-07-14 07:05:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 500 states have (on average 1.392) internal successors, (696), 503 states have internal predecessors, (696), 96 states have call successors, (96), 30 states have call predecessors, (96), 28 states have return successors, (148), 95 states have call predecessors, (148), 85 states have call successors, (148) [2022-07-14 07:05:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 940 transitions. [2022-07-14 07:05:01,515 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 940 transitions. Word has length 15 [2022-07-14 07:05:01,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,516 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 940 transitions. [2022-07-14 07:05:01,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 07:05:01,516 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 940 transitions. [2022-07-14 07:05:01,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-14 07:05:01,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,519 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] [2022-07-14 07:05:01,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 07:05:01,520 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,521 INFO L85 PathProgramCache]: Analyzing trace with hash -291957618, now seen corresponding path program 1 times [2022-07-14 07:05:01,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136870749] [2022-07-14 07:05:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,612 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 07:05:01,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136870749] [2022-07-14 07:05:01,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136870749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604582256] [2022-07-14 07:05:01,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,617 INFO L87 Difference]: Start difference. First operand 625 states and 940 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 07:05:01,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,647 INFO L93 Difference]: Finished difference Result 949 states and 1438 transitions. [2022-07-14 07:05:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20 [2022-07-14 07:05:01,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,653 INFO L225 Difference]: With dead ends: 949 [2022-07-14 07:05:01,653 INFO L226 Difference]: Without dead ends: 949 [2022-07-14 07:05:01,654 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 07:05:01,655 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 255 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 585 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:01,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-07-14 07:05:01,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 904. [2022-07-14 07:05:01,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 717 states have (on average 1.407252440725244) internal successors, (1009), 722 states have internal predecessors, (1009), 142 states have call successors, (142), 46 states have call predecessors, (142), 44 states have return successors, (231), 137 states have call predecessors, (231), 132 states have call successors, (231) [2022-07-14 07:05:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1382 transitions. [2022-07-14 07:05:01,702 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1382 transitions. Word has length 20 [2022-07-14 07:05:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,702 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1382 transitions. [2022-07-14 07:05:01,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 07:05:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1382 transitions. [2022-07-14 07:05:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-14 07:05:01,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,709 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] [2022-07-14 07:05:01,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 07:05:01,709 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash -175921107, now seen corresponding path program 1 times [2022-07-14 07:05:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844262630] [2022-07-14 07:05:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,763 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 07:05:01,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844262630] [2022-07-14 07:05:01,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844262630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451836049] [2022-07-14 07:05:01,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:01,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:01,766 INFO L87 Difference]: Start difference. First operand 904 states and 1382 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 07:05:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:01,821 INFO L93 Difference]: Finished difference Result 915 states and 1397 transitions. [2022-07-14 07:05:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:01,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 24 [2022-07-14 07:05:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:01,826 INFO L225 Difference]: With dead ends: 915 [2022-07-14 07:05:01,827 INFO L226 Difference]: Without dead ends: 915 [2022-07-14 07:05:01,827 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 07:05:01,828 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 21 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:01,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 557 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-07-14 07:05:01,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 914. [2022-07-14 07:05:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 728 states have (on average 1.4052197802197801) internal successors, (1023), 731 states have internal predecessors, (1023), 141 states have call successors, (141), 47 states have call predecessors, (141), 44 states have return successors, (231), 137 states have call predecessors, (231), 132 states have call successors, (231) [2022-07-14 07:05:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1395 transitions. [2022-07-14 07:05:01,869 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1395 transitions. Word has length 24 [2022-07-14 07:05:01,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:01,869 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1395 transitions. [2022-07-14 07:05:01,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 07:05:01,870 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1395 transitions. [2022-07-14 07:05:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-14 07:05:01,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:01,871 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] [2022-07-14 07:05:01,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 07:05:01,872 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:01,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash 9760830, now seen corresponding path program 1 times [2022-07-14 07:05:01,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:01,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804269657] [2022-07-14 07:05:01,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:01,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 07:05:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:01,926 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 07:05:01,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:01,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804269657] [2022-07-14 07:05:01,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804269657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:01,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:01,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:01,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773924492] [2022-07-14 07:05:01,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:01,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:01,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:01,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:01,929 INFO L87 Difference]: Start difference. First operand 914 states and 1395 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 07:05:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:02,125 INFO L93 Difference]: Finished difference Result 974 states and 1486 transitions. [2022-07-14 07:05:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:02,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 27 [2022-07-14 07:05:02,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:02,131 INFO L225 Difference]: With dead ends: 974 [2022-07-14 07:05:02,132 INFO L226 Difference]: Without dead ends: 974 [2022-07-14 07:05:02,132 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 07:05:02,133 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 100 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:02,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 673 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:02,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-07-14 07:05:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 951. [2022-07-14 07:05:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 761 states have (on average 1.3955321944809462) internal successors, (1062), 768 states have internal predecessors, (1062), 141 states have call successors, (141), 47 states have call predecessors, (141), 48 states have return successors, (249), 137 states have call predecessors, (249), 132 states have call successors, (249) [2022-07-14 07:05:02,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1452 transitions. [2022-07-14 07:05:02,164 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1452 transitions. Word has length 27 [2022-07-14 07:05:02,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:02,165 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1452 transitions. [2022-07-14 07:05:02,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 07:05:02,166 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1452 transitions. [2022-07-14 07:05:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-14 07:05:02,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:02,168 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] [2022-07-14 07:05:02,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 07:05:02,171 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:02,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:02,171 INFO L85 PathProgramCache]: Analyzing trace with hash 755665447, now seen corresponding path program 1 times [2022-07-14 07:05:02,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:02,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521700331] [2022-07-14 07:05:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:02,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 07:05:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,314 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 07:05:02,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521700331] [2022-07-14 07:05:02,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521700331] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:02,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741553081] [2022-07-14 07:05:02,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:02,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:02,317 INFO L87 Difference]: Start difference. First operand 951 states and 1452 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 07:05:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:02,671 INFO L93 Difference]: Finished difference Result 974 states and 1484 transitions. [2022-07-14 07:05:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:02,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 28 [2022-07-14 07:05:02,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:02,676 INFO L225 Difference]: With dead ends: 974 [2022-07-14 07:05:02,676 INFO L226 Difference]: Without dead ends: 974 [2022-07-14 07:05:02,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:02,677 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 403 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:02,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 790 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-07-14 07:05:02,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 951. [2022-07-14 07:05:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 761 states have (on average 1.392904073587385) internal successors, (1060), 768 states have internal predecessors, (1060), 141 states have call successors, (141), 47 states have call predecessors, (141), 48 states have return successors, (249), 137 states have call predecessors, (249), 132 states have call successors, (249) [2022-07-14 07:05:02,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1450 transitions. [2022-07-14 07:05:02,704 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1450 transitions. Word has length 28 [2022-07-14 07:05:02,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:02,705 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1450 transitions. [2022-07-14 07:05:02,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 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 07:05:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1450 transitions. [2022-07-14 07:05:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 07:05:02,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:02,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:02,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 07:05:02,707 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:02,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:02,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1062018506, now seen corresponding path program 1 times [2022-07-14 07:05:02,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:02,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057199538] [2022-07-14 07:05:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 07:05:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:02,799 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 07:05:02,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:02,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057199538] [2022-07-14 07:05:02,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057199538] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:02,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:02,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:02,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793396122] [2022-07-14 07:05:02,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:02,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:02,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:02,802 INFO L87 Difference]: Start difference. First operand 951 states and 1450 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 07:05:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:03,114 INFO L93 Difference]: Finished difference Result 974 states and 1482 transitions. [2022-07-14 07:05:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:03,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2022-07-14 07:05:03,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:03,119 INFO L225 Difference]: With dead ends: 974 [2022-07-14 07:05:03,119 INFO L226 Difference]: Without dead ends: 974 [2022-07-14 07:05:03,120 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 07:05:03,120 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 401 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:03,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 791 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:03,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-07-14 07:05:03,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 951. [2022-07-14 07:05:03,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 761 states have (on average 1.390275952693824) internal successors, (1058), 768 states have internal predecessors, (1058), 141 states have call successors, (141), 47 states have call predecessors, (141), 48 states have return successors, (249), 137 states have call predecessors, (249), 132 states have call successors, (249) [2022-07-14 07:05:03,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1448 transitions. [2022-07-14 07:05:03,148 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1448 transitions. Word has length 29 [2022-07-14 07:05:03,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:03,149 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1448 transitions. [2022-07-14 07:05:03,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 07:05:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1448 transitions. [2022-07-14 07:05:03,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-14 07:05:03,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:03,150 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] [2022-07-14 07:05:03,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 07:05:03,151 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:03,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:03,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1381771216, now seen corresponding path program 1 times [2022-07-14 07:05:03,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:03,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143690316] [2022-07-14 07:05:03,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:03,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 07:05:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,198 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 07:05:03,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:03,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143690316] [2022-07-14 07:05:03,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143690316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:03,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:03,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:03,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157064054] [2022-07-14 07:05:03,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:03,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:03,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:03,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:03,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:03,201 INFO L87 Difference]: Start difference. First operand 951 states and 1448 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 07:05:03,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:03,377 INFO L93 Difference]: Finished difference Result 984 states and 1493 transitions. [2022-07-14 07:05:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:03,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 30 [2022-07-14 07:05:03,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:03,383 INFO L225 Difference]: With dead ends: 984 [2022-07-14 07:05:03,383 INFO L226 Difference]: Without dead ends: 968 [2022-07-14 07:05:03,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:03,384 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 84 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:03,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 998 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-07-14 07:05:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 947. [2022-07-14 07:05:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 758 states have (on average 1.3905013192612137) internal successors, (1054), 765 states have internal predecessors, (1054), 140 states have call successors, (140), 47 states have call predecessors, (140), 48 states have return successors, (248), 136 states have call predecessors, (248), 131 states have call successors, (248) [2022-07-14 07:05:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1442 transitions. [2022-07-14 07:05:03,420 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1442 transitions. Word has length 30 [2022-07-14 07:05:03,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:03,420 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1442 transitions. [2022-07-14 07:05:03,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 07:05:03,421 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1442 transitions. [2022-07-14 07:05:03,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:05:03,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:03,422 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 07:05:03,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 07:05:03,424 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:03,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1269800431, now seen corresponding path program 1 times [2022-07-14 07:05:03,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:03,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762120009] [2022-07-14 07:05:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:03,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,498 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 07:05:03,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:03,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762120009] [2022-07-14 07:05:03,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762120009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:03,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:03,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:03,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010353153] [2022-07-14 07:05:03,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:03,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:03,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:03,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:03,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:03,500 INFO L87 Difference]: Start difference. First operand 947 states and 1442 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 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 07:05:03,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:03,734 INFO L93 Difference]: Finished difference Result 997 states and 1505 transitions. [2022-07-14 07:05:03,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:03,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2022-07-14 07:05:03,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:03,739 INFO L225 Difference]: With dead ends: 997 [2022-07-14 07:05:03,739 INFO L226 Difference]: Without dead ends: 966 [2022-07-14 07:05:03,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:03,740 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 113 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:03,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1228 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:03,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-07-14 07:05:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 945. [2022-07-14 07:05:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 757 states have (on average 1.3883751651254954) internal successors, (1051), 764 states have internal predecessors, (1051), 139 states have call successors, (139), 47 states have call predecessors, (139), 48 states have return successors, (247), 135 states have call predecessors, (247), 130 states have call successors, (247) [2022-07-14 07:05:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1437 transitions. [2022-07-14 07:05:03,768 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1437 transitions. Word has length 34 [2022-07-14 07:05:03,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:03,770 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1437 transitions. [2022-07-14 07:05:03,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 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 07:05:03,770 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1437 transitions. [2022-07-14 07:05:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:05:03,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:03,772 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 07:05:03,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 07:05:03,773 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash 282504272, now seen corresponding path program 1 times [2022-07-14 07:05:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:03,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280968974] [2022-07-14 07:05:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 07:05:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:03,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:03,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:03,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280968974] [2022-07-14 07:05:03,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280968974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:03,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:03,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:03,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422440286] [2022-07-14 07:05:03,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:03,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:03,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:03,834 INFO L87 Difference]: Start difference. First operand 945 states and 1437 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:04,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:04,199 INFO L93 Difference]: Finished difference Result 1436 states and 2280 transitions. [2022-07-14 07:05:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:04,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 34 [2022-07-14 07:05:04,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:04,212 INFO L225 Difference]: With dead ends: 1436 [2022-07-14 07:05:04,213 INFO L226 Difference]: Without dead ends: 1436 [2022-07-14 07:05:04,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 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 07:05:04,214 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 276 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:04,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 736 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:04,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-07-14 07:05:04,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1012. [2022-07-14 07:05:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 811 states have (on average 1.3834771886559802) internal successors, (1122), 821 states have internal predecessors, (1122), 146 states have call successors, (146), 49 states have call predecessors, (146), 54 states have return successors, (276), 143 states have call predecessors, (276), 137 states have call successors, (276) [2022-07-14 07:05:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1544 transitions. [2022-07-14 07:05:04,256 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1544 transitions. Word has length 34 [2022-07-14 07:05:04,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:04,256 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1544 transitions. [2022-07-14 07:05:04,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:04,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1544 transitions. [2022-07-14 07:05:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:04,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:04,258 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 07:05:04,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 07:05:04,258 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:04,259 INFO L85 PathProgramCache]: Analyzing trace with hash 621054387, now seen corresponding path program 1 times [2022-07-14 07:05:04,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:04,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19107572] [2022-07-14 07:05:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:04,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 07:05:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,336 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 07:05:04,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:04,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19107572] [2022-07-14 07:05:04,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19107572] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:04,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:04,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:04,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868709815] [2022-07-14 07:05:04,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:04,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:04,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:04,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:04,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:04,339 INFO L87 Difference]: Start difference. First operand 1012 states and 1544 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:04,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:04,722 INFO L93 Difference]: Finished difference Result 1074 states and 1632 transitions. [2022-07-14 07:05:04,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:04,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 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 35 [2022-07-14 07:05:04,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:04,729 INFO L225 Difference]: With dead ends: 1074 [2022-07-14 07:05:04,729 INFO L226 Difference]: Without dead ends: 1073 [2022-07-14 07:05:04,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:04,731 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 87 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:04,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1563 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:04,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-07-14 07:05:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1020. [2022-07-14 07:05:04,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 819 states have (on average 1.3821733821733821) internal successors, (1132), 829 states have internal predecessors, (1132), 146 states have call successors, (146), 49 states have call predecessors, (146), 54 states have return successors, (276), 143 states have call predecessors, (276), 137 states have call successors, (276) [2022-07-14 07:05:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1554 transitions. [2022-07-14 07:05:04,760 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1554 transitions. Word has length 35 [2022-07-14 07:05:04,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:04,761 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1554 transitions. [2022-07-14 07:05:04,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:04,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1554 transitions. [2022-07-14 07:05:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:04,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:04,763 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 07:05:04,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 07:05:04,763 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:04,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:04,764 INFO L85 PathProgramCache]: Analyzing trace with hash 620777557, now seen corresponding path program 1 times [2022-07-14 07:05:04,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:04,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064420820] [2022-07-14 07:05:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 07:05:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:04,843 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 07:05:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:04,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064420820] [2022-07-14 07:05:04,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064420820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:04,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:04,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509417123] [2022-07-14 07:05:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:04,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:04,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:04,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:04,846 INFO L87 Difference]: Start difference. First operand 1020 states and 1554 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 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 07:05:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,205 INFO L93 Difference]: Finished difference Result 1147 states and 1834 transitions. [2022-07-14 07:05:05,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:05,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 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 35 [2022-07-14 07:05:05,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,211 INFO L225 Difference]: With dead ends: 1147 [2022-07-14 07:05:05,212 INFO L226 Difference]: Without dead ends: 1134 [2022-07-14 07:05:05,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:05,213 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 96 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:05,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 1679 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:05,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2022-07-14 07:05:05,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1038. [2022-07-14 07:05:05,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 836 states have (on average 1.3863636363636365) internal successors, (1159), 847 states have internal predecessors, (1159), 146 states have call successors, (146), 49 states have call predecessors, (146), 55 states have return successors, (295), 143 states have call predecessors, (295), 137 states have call successors, (295) [2022-07-14 07:05:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1600 transitions. [2022-07-14 07:05:05,248 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1600 transitions. Word has length 35 [2022-07-14 07:05:05,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,248 INFO L495 AbstractCegarLoop]: Abstraction has 1038 states and 1600 transitions. [2022-07-14 07:05:05,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 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 07:05:05,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1600 transitions. [2022-07-14 07:05:05,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-14 07:05:05,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,250 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 07:05:05,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 07:05:05,250 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1299938929, now seen corresponding path program 1 times [2022-07-14 07:05:05,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916385218] [2022-07-14 07:05:05,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,302 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 07:05:05,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:05,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916385218] [2022-07-14 07:05:05,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916385218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:05,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:05,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:05,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210684143] [2022-07-14 07:05:05,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:05,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:05,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:05,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:05,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:05,305 INFO L87 Difference]: Start difference. First operand 1038 states and 1600 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 07:05:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:05,436 INFO L93 Difference]: Finished difference Result 1047 states and 1605 transitions. [2022-07-14 07:05:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:05,436 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 07:05:05,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:05,442 INFO L225 Difference]: With dead ends: 1047 [2022-07-14 07:05:05,442 INFO L226 Difference]: Without dead ends: 1047 [2022-07-14 07:05:05,444 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 07:05:05,445 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 312 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:05,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 470 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:05,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-07-14 07:05:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1032. [2022-07-14 07:05:05,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 830 states have (on average 1.3855421686746987) internal successors, (1150), 842 states have internal predecessors, (1150), 146 states have call successors, (146), 49 states have call predecessors, (146), 55 states have return successors, (293), 142 states have call predecessors, (293), 137 states have call successors, (293) [2022-07-14 07:05:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1589 transitions. [2022-07-14 07:05:05,474 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1589 transitions. Word has length 34 [2022-07-14 07:05:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:05,474 INFO L495 AbstractCegarLoop]: Abstraction has 1032 states and 1589 transitions. [2022-07-14 07:05:05,474 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 07:05:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1589 transitions. [2022-07-14 07:05:05,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:05:05,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:05,475 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 07:05:05,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 07:05:05,476 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:05,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2068890717, now seen corresponding path program 1 times [2022-07-14 07:05:05,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:05,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955200625] [2022-07-14 07:05:05,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:05,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 07:05:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:05,558 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 07:05:05,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:05,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955200625] [2022-07-14 07:05:05,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955200625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:05,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:05,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:05,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745895509] [2022-07-14 07:05:05,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:05,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:05,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:05,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:05,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:05,561 INFO L87 Difference]: Start difference. First operand 1032 states and 1589 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 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 07:05:06,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,149 INFO L93 Difference]: Finished difference Result 1482 states and 2371 transitions. [2022-07-14 07:05:06,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:06,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 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 36 [2022-07-14 07:05:06,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,158 INFO L225 Difference]: With dead ends: 1482 [2022-07-14 07:05:06,158 INFO L226 Difference]: Without dead ends: 1469 [2022-07-14 07:05:06,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:06,159 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 758 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 841 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 07:05:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2022-07-14 07:05:06,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1019. [2022-07-14 07:05:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 819 states have (on average 1.387057387057387) internal successors, (1136), 830 states have internal predecessors, (1136), 145 states have call successors, (145), 49 states have call predecessors, (145), 54 states have return successors, (274), 141 states have call predecessors, (274), 136 states have call successors, (274) [2022-07-14 07:05:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1555 transitions. [2022-07-14 07:05:06,202 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1555 transitions. Word has length 36 [2022-07-14 07:05:06,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,203 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1555 transitions. [2022-07-14 07:05:06,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 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 07:05:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1555 transitions. [2022-07-14 07:05:06,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-14 07:05:06,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,204 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] [2022-07-14 07:05:06,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 07:05:06,205 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash 661355935, now seen corresponding path program 1 times [2022-07-14 07:05:06,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896580949] [2022-07-14 07:05:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,252 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 07:05:06,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896580949] [2022-07-14 07:05:06,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896580949] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:06,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060888888] [2022-07-14 07:05:06,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:06,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:06,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:06,255 INFO L87 Difference]: Start difference. First operand 1019 states and 1555 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 07:05:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,499 INFO L93 Difference]: Finished difference Result 723 states and 1044 transitions. [2022-07-14 07:05:06,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:06,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 38 [2022-07-14 07:05:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,502 INFO L225 Difference]: With dead ends: 723 [2022-07-14 07:05:06,502 INFO L226 Difference]: Without dead ends: 723 [2022-07-14 07:05:06,502 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 07:05:06,503 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 378 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 714 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-14 07:05:06,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 650. [2022-07-14 07:05:06,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 527 states have (on average 1.3529411764705883) internal successors, (713), 537 states have internal predecessors, (713), 87 states have call successors, (87), 33 states have call predecessors, (87), 35 states have return successors, (143), 81 states have call predecessors, (143), 78 states have call successors, (143) [2022-07-14 07:05:06,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 943 transitions. [2022-07-14 07:05:06,519 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 943 transitions. Word has length 38 [2022-07-14 07:05:06,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,520 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 943 transitions. [2022-07-14 07:05:06,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 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 07:05:06,520 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 943 transitions. [2022-07-14 07:05:06,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:06,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:06,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 07:05:06,521 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1922765743, now seen corresponding path program 1 times [2022-07-14 07:05:06,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407892687] [2022-07-14 07:05:06,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,542 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 07:05:06,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407892687] [2022-07-14 07:05:06,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407892687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 07:05:06,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532893147] [2022-07-14 07:05:06,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 07:05:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 07:05:06,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 07:05:06,544 INFO L87 Difference]: Start difference. First operand 650 states and 943 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 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 07:05:06,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,616 INFO L93 Difference]: Finished difference Result 916 states and 1387 transitions. [2022-07-14 07:05:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 07:05:06,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 07:05:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,620 INFO L225 Difference]: With dead ends: 916 [2022-07-14 07:05:06,621 INFO L226 Difference]: Without dead ends: 916 [2022-07-14 07:05:06,621 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 07:05:06,622 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 183 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 715 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:06,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2022-07-14 07:05:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 666. [2022-07-14 07:05:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 542 states have (on average 1.345018450184502) internal successors, (729), 552 states have internal predecessors, (729), 87 states have call successors, (87), 33 states have call predecessors, (87), 36 states have return successors, (144), 82 states have call predecessors, (144), 78 states have call successors, (144) [2022-07-14 07:05:06,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 960 transitions. [2022-07-14 07:05:06,642 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 960 transitions. Word has length 35 [2022-07-14 07:05:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,642 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 960 transitions. [2022-07-14 07:05:06,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 07:05:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 960 transitions. [2022-07-14 07:05:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-14 07:05:06,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:06,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 07:05:06,644 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1798212433, now seen corresponding path program 1 times [2022-07-14 07:05:06,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797378991] [2022-07-14 07:05:06,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,689 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 07:05:06,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797378991] [2022-07-14 07:05:06,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797378991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296580583] [2022-07-14 07:05:06,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:06,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:06,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:06,693 INFO L87 Difference]: Start difference. First operand 666 states and 960 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 07:05:06,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:06,816 INFO L93 Difference]: Finished difference Result 644 states and 929 transitions. [2022-07-14 07:05:06,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:06,817 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 07:05:06,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:06,819 INFO L225 Difference]: With dead ends: 644 [2022-07-14 07:05:06,819 INFO L226 Difference]: Without dead ends: 644 [2022-07-14 07:05:06,820 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 07:05:06,820 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 291 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:06,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 463 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:06,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-07-14 07:05:06,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 642. [2022-07-14 07:05:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 520 states have (on average 1.3423076923076922) internal successors, (698), 529 states have internal predecessors, (698), 86 states have call successors, (86), 33 states have call predecessors, (86), 35 states have return successors, (143), 81 states have call predecessors, (143), 78 states have call successors, (143) [2022-07-14 07:05:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 927 transitions. [2022-07-14 07:05:06,838 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 927 transitions. Word has length 35 [2022-07-14 07:05:06,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:06,839 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 927 transitions. [2022-07-14 07:05:06,839 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 07:05:06,839 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 927 transitions. [2022-07-14 07:05:06,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 07:05:06,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:06,840 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 07:05:06,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 07:05:06,840 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:06,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash 734679029, now seen corresponding path program 1 times [2022-07-14 07:05:06,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:06,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720939993] [2022-07-14 07:05:06,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:06,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:06,898 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 07:05:06,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:06,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720939993] [2022-07-14 07:05:06,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720939993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:06,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:06,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:06,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345578641] [2022-07-14 07:05:06,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:06,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:06,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:06,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:06,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:06,901 INFO L87 Difference]: Start difference. First operand 642 states and 927 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 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 07:05:07,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:07,243 INFO L93 Difference]: Finished difference Result 698 states and 1010 transitions. [2022-07-14 07:05:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 07:05:07,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 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 07:05:07,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:07,247 INFO L225 Difference]: With dead ends: 698 [2022-07-14 07:05:07,247 INFO L226 Difference]: Without dead ends: 670 [2022-07-14 07:05:07,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:07,248 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 83 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:07,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1519 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:07,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-07-14 07:05:07,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 615. [2022-07-14 07:05:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 495 states have (on average 1.3494949494949495) internal successors, (668), 504 states have internal predecessors, (668), 85 states have call successors, (85), 32 states have call predecessors, (85), 34 states have return successors, (142), 80 states have call predecessors, (142), 77 states have call successors, (142) [2022-07-14 07:05:07,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 895 transitions. [2022-07-14 07:05:07,262 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 895 transitions. Word has length 37 [2022-07-14 07:05:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:07,263 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 895 transitions. [2022-07-14 07:05:07,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 6 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 07:05:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 895 transitions. [2022-07-14 07:05:07,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-14 07:05:07,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:07,264 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 07:05:07,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-14 07:05:07,264 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:07,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:07,265 INFO L85 PathProgramCache]: Analyzing trace with hash -70447564, now seen corresponding path program 1 times [2022-07-14 07:05:07,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:07,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277843217] [2022-07-14 07:05:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,347 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 07:05:07,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:07,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277843217] [2022-07-14 07:05:07,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277843217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:07,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:07,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:07,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131825107] [2022-07-14 07:05:07,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:07,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:07,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:07,350 INFO L87 Difference]: Start difference. First operand 615 states and 895 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:07,431 INFO L93 Difference]: Finished difference Result 632 states and 912 transitions. [2022-07-14 07:05:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:07,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-07-14 07:05:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:07,434 INFO L225 Difference]: With dead ends: 632 [2022-07-14 07:05:07,434 INFO L226 Difference]: Without dead ends: 614 [2022-07-14 07:05:07,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:07,436 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 43 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:07,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1597 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:07,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-07-14 07:05:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2022-07-14 07:05:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 494 states have (on average 1.3481781376518218) internal successors, (666), 503 states have internal predecessors, (666), 85 states have call successors, (85), 32 states have call predecessors, (85), 34 states have return successors, (142), 80 states have call predecessors, (142), 77 states have call successors, (142) [2022-07-14 07:05:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 893 transitions. [2022-07-14 07:05:07,450 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 893 transitions. Word has length 36 [2022-07-14 07:05:07,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:07,450 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 893 transitions. [2022-07-14 07:05:07,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 07:05:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 893 transitions. [2022-07-14 07:05:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-14 07:05:07,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:07,451 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] [2022-07-14 07:05:07,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-14 07:05:07,452 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:07,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1099539614, now seen corresponding path program 1 times [2022-07-14 07:05:07,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:07,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137250853] [2022-07-14 07:05:07,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:07,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 07:05:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,487 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 07:05:07,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:07,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137250853] [2022-07-14 07:05:07,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137250853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:07,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:07,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:07,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963904243] [2022-07-14 07:05:07,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:07,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:07,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:07,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:07,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:07,489 INFO L87 Difference]: Start difference. First operand 614 states and 893 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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 07:05:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:07,681 INFO L93 Difference]: Finished difference Result 653 states and 948 transitions. [2022-07-14 07:05:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:07,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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 38 [2022-07-14 07:05:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:07,686 INFO L225 Difference]: With dead ends: 653 [2022-07-14 07:05:07,686 INFO L226 Difference]: Without dead ends: 626 [2022-07-14 07:05:07,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:07,687 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 98 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:07,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1128 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-07-14 07:05:07,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 599. [2022-07-14 07:05:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 481 states have (on average 1.3534303534303533) internal successors, (651), 490 states have internal predecessors, (651), 84 states have call successors, (84), 31 states have call predecessors, (84), 33 states have return successors, (141), 79 states have call predecessors, (141), 76 states have call successors, (141) [2022-07-14 07:05:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 876 transitions. [2022-07-14 07:05:07,704 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 876 transitions. Word has length 38 [2022-07-14 07:05:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:07,705 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 876 transitions. [2022-07-14 07:05:07,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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 07:05:07,705 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 876 transitions. [2022-07-14 07:05:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 07:05:07,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:07,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:07,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-14 07:05:07,707 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:07,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash 233678839, now seen corresponding path program 1 times [2022-07-14 07:05:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:07,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431932418] [2022-07-14 07:05:07,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:07,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,764 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 07:05:07,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:07,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431932418] [2022-07-14 07:05:07,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431932418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:07,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:07,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:07,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268450441] [2022-07-14 07:05:07,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:07,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:07,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:07,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:07,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:07,766 INFO L87 Difference]: Start difference. First operand 599 states and 876 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 07:05:07,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:07,840 INFO L93 Difference]: Finished difference Result 611 states and 889 transitions. [2022-07-14 07:05:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:07,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 37 [2022-07-14 07:05:07,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:07,843 INFO L225 Difference]: With dead ends: 611 [2022-07-14 07:05:07,843 INFO L226 Difference]: Without dead ends: 610 [2022-07-14 07:05:07,844 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 07:05:07,844 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 46 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:07,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1234 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 07:05:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-07-14 07:05:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 606. [2022-07-14 07:05:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 488 states have (on average 1.3504098360655739) internal successors, (659), 497 states have internal predecessors, (659), 84 states have call successors, (84), 31 states have call predecessors, (84), 33 states have return successors, (141), 79 states have call predecessors, (141), 76 states have call successors, (141) [2022-07-14 07:05:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 884 transitions. [2022-07-14 07:05:07,857 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 884 transitions. Word has length 37 [2022-07-14 07:05:07,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:07,858 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 884 transitions. [2022-07-14 07:05:07,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 07:05:07,858 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 884 transitions. [2022-07-14 07:05:07,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 07:05:07,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:07,860 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 07:05:07,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-14 07:05:07,860 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:07,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:07,861 INFO L85 PathProgramCache]: Analyzing trace with hash 233402009, now seen corresponding path program 1 times [2022-07-14 07:05:07,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:07,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101490990] [2022-07-14 07:05:07,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:07,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:07,905 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 07:05:07,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:07,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101490990] [2022-07-14 07:05:07,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101490990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:07,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:07,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 07:05:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351770496] [2022-07-14 07:05:07,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:07,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 07:05:07,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:07,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 07:05:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 07:05:07,910 INFO L87 Difference]: Start difference. First operand 606 states and 884 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 07:05:08,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:08,113 INFO L93 Difference]: Finished difference Result 852 states and 1305 transitions. [2022-07-14 07:05:08,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 07:05:08,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 37 [2022-07-14 07:05:08,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:08,118 INFO L225 Difference]: With dead ends: 852 [2022-07-14 07:05:08,118 INFO L226 Difference]: Without dead ends: 827 [2022-07-14 07:05:08,119 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 07:05:08,119 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 393 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:08,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 575 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:08,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2022-07-14 07:05:08,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 583. [2022-07-14 07:05:08,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 465 states have (on average 1.3591397849462366) internal successors, (632), 474 states have internal predecessors, (632), 84 states have call successors, (84), 31 states have call predecessors, (84), 33 states have return successors, (141), 79 states have call predecessors, (141), 76 states have call successors, (141) [2022-07-14 07:05:08,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 857 transitions. [2022-07-14 07:05:08,136 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 857 transitions. Word has length 37 [2022-07-14 07:05:08,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:08,136 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 857 transitions. [2022-07-14 07:05:08,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 07:05:08,137 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 857 transitions. [2022-07-14 07:05:08,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:08,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:08,137 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 07:05:08,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-14 07:05:08,138 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:08,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:08,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1478054632, now seen corresponding path program 1 times [2022-07-14 07:05:08,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:08,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984984961] [2022-07-14 07:05:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 07:05:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 07:05:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,177 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 07:05:08,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:08,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984984961] [2022-07-14 07:05:08,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984984961] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:08,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:08,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:08,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148893177] [2022-07-14 07:05:08,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:08,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:08,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:08,179 INFO L87 Difference]: Start difference. First operand 583 states and 857 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:08,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:08,403 INFO L93 Difference]: Finished difference Result 726 states and 1109 transitions. [2022-07-14 07:05:08,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:08,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 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 07:05:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:08,410 INFO L225 Difference]: With dead ends: 726 [2022-07-14 07:05:08,410 INFO L226 Difference]: Without dead ends: 726 [2022-07-14 07:05:08,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:08,411 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 173 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:08,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 743 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-07-14 07:05:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 645. [2022-07-14 07:05:08,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 523 states have (on average 1.3652007648183557) internal successors, (714), 533 states have internal predecessors, (714), 86 states have call successors, (86), 31 states have call predecessors, (86), 35 states have return successors, (159), 80 states have call predecessors, (159), 78 states have call successors, (159) [2022-07-14 07:05:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 959 transitions. [2022-07-14 07:05:08,445 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 959 transitions. Word has length 43 [2022-07-14 07:05:08,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:08,446 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 959 transitions. [2022-07-14 07:05:08,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:08,447 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 959 transitions. [2022-07-14 07:05:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-07-14 07:05:08,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:08,448 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 07:05:08,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-14 07:05:08,449 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:08,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:08,449 INFO L85 PathProgramCache]: Analyzing trace with hash -268012581, now seen corresponding path program 1 times [2022-07-14 07:05:08,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:08,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787287737] [2022-07-14 07:05:08,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:08,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 07:05:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:08,601 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 07:05:08,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:08,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787287737] [2022-07-14 07:05:08,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787287737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:08,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:08,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828848535] [2022-07-14 07:05:08,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:08,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:08,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:08,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:08,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:08,604 INFO L87 Difference]: Start difference. First operand 645 states and 959 transitions. Second operand has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (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 07:05:09,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:09,046 INFO L93 Difference]: Finished difference Result 749 states and 1158 transitions. [2022-07-14 07:05:09,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 07:05:09,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (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 43 [2022-07-14 07:05:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:09,050 INFO L225 Difference]: With dead ends: 749 [2022-07-14 07:05:09,050 INFO L226 Difference]: Without dead ends: 729 [2022-07-14 07:05:09,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:09,051 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 102 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:09,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1385 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:09,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-07-14 07:05:09,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 644. [2022-07-14 07:05:09,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 522 states have (on average 1.3639846743295019) internal successors, (712), 532 states have internal predecessors, (712), 86 states have call successors, (86), 31 states have call predecessors, (86), 35 states have return successors, (159), 80 states have call predecessors, (159), 78 states have call successors, (159) [2022-07-14 07:05:09,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 957 transitions. [2022-07-14 07:05:09,075 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 957 transitions. Word has length 43 [2022-07-14 07:05:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:09,076 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 957 transitions. [2022-07-14 07:05:09,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.0) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (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 07:05:09,076 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 957 transitions. [2022-07-14 07:05:09,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:09,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:09,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:09,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-14 07:05:09,077 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:09,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1845246895, now seen corresponding path program 1 times [2022-07-14 07:05:09,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:09,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290215733] [2022-07-14 07:05:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:09,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 07:05:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 07:05:09,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:09,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290215733] [2022-07-14 07:05:09,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290215733] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:09,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:09,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 07:05:09,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938278221] [2022-07-14 07:05:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:09,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 07:05:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 07:05:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:09,154 INFO L87 Difference]: Start difference. First operand 644 states and 957 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:09,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:09,543 INFO L93 Difference]: Finished difference Result 815 states and 1297 transitions. [2022-07-14 07:05:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:09,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 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 07:05:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:09,548 INFO L225 Difference]: With dead ends: 815 [2022-07-14 07:05:09,548 INFO L226 Difference]: Without dead ends: 815 [2022-07-14 07:05:09,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-07-14 07:05:09,549 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 129 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:09,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1304 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2022-07-14 07:05:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 668. [2022-07-14 07:05:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 542 states have (on average 1.3542435424354244) internal successors, (734), 552 states have internal predecessors, (734), 86 states have call successors, (86), 31 states have call predecessors, (86), 39 states have return successors, (211), 84 states have call predecessors, (211), 78 states have call successors, (211) [2022-07-14 07:05:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1031 transitions. [2022-07-14 07:05:09,581 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1031 transitions. Word has length 48 [2022-07-14 07:05:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:09,581 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 1031 transitions. [2022-07-14 07:05:09,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1031 transitions. [2022-07-14 07:05:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-14 07:05:09,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:09,582 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 07:05:09,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-14 07:05:09,583 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:09,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash -615366385, now seen corresponding path program 1 times [2022-07-14 07:05:09,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:09,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144161669] [2022-07-14 07:05:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:09,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 07:05:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:09,677 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 07:05:09,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:09,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144161669] [2022-07-14 07:05:09,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144161669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:09,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:09,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:09,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270954264] [2022-07-14 07:05:09,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:09,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:09,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:09,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:09,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:09,680 INFO L87 Difference]: Start difference. First operand 668 states and 1031 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:10,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:10,113 INFO L93 Difference]: Finished difference Result 726 states and 1118 transitions. [2022-07-14 07:05:10,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:10,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-07-14 07:05:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:10,117 INFO L225 Difference]: With dead ends: 726 [2022-07-14 07:05:10,118 INFO L226 Difference]: Without dead ends: 696 [2022-07-14 07:05:10,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-14 07:05:10,119 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 91 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:10,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1364 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:10,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-14 07:05:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 637. [2022-07-14 07:05:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 514 states have (on average 1.367704280155642) internal successors, (703), 523 states have internal predecessors, (703), 84 states have call successors, (84), 30 states have call predecessors, (84), 38 states have return successors, (210), 83 states have call predecessors, (210), 77 states have call successors, (210) [2022-07-14 07:05:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 997 transitions. [2022-07-14 07:05:10,136 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 997 transitions. Word has length 44 [2022-07-14 07:05:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:10,136 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 997 transitions. [2022-07-14 07:05:10,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 07:05:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 997 transitions. [2022-07-14 07:05:10,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 07:05:10,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:10,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:10,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-14 07:05:10,139 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:10,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:10,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1448694147, now seen corresponding path program 1 times [2022-07-14 07:05:10,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:10,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767712948] [2022-07-14 07:05:10,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:10,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,186 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 07:05:10,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:10,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767712948] [2022-07-14 07:05:10,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767712948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:10,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:10,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:10,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062830282] [2022-07-14 07:05:10,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:10,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:10,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:10,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:10,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:10,190 INFO L87 Difference]: Start difference. First operand 637 states and 997 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:10,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:10,496 INFO L93 Difference]: Finished difference Result 1213 states and 2011 transitions. [2022-07-14 07:05:10,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:10,496 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), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2022-07-14 07:05:10,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:10,504 INFO L225 Difference]: With dead ends: 1213 [2022-07-14 07:05:10,504 INFO L226 Difference]: Without dead ends: 1213 [2022-07-14 07:05:10,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 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 07:05:10,505 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 296 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:10,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 803 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:10,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2022-07-14 07:05:10,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 645. [2022-07-14 07:05:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 522 states have (on average 1.3697318007662835) internal successors, (715), 531 states have internal predecessors, (715), 84 states have call successors, (84), 30 states have call predecessors, (84), 38 states have return successors, (210), 83 states have call predecessors, (210), 77 states have call successors, (210) [2022-07-14 07:05:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1009 transitions. [2022-07-14 07:05:10,540 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1009 transitions. Word has length 48 [2022-07-14 07:05:10,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:10,541 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1009 transitions. [2022-07-14 07:05:10,541 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), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1009 transitions. [2022-07-14 07:05:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:05:10,542 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:10,542 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 07:05:10,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-14 07:05:10,542 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:10,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1116153965, now seen corresponding path program 1 times [2022-07-14 07:05:10,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:10,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365362841] [2022-07-14 07:05:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:10,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 07:05:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:10,609 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 07:05:10,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:10,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365362841] [2022-07-14 07:05:10,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365362841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:10,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:10,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 07:05:10,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001742760] [2022-07-14 07:05:10,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:10,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 07:05:10,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:10,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 07:05:10,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 07:05:10,612 INFO L87 Difference]: Start difference. First operand 645 states and 1009 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:10,984 INFO L93 Difference]: Finished difference Result 1361 states and 2165 transitions. [2022-07-14 07:05:10,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:10,985 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), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-07-14 07:05:10,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:10,997 INFO L225 Difference]: With dead ends: 1361 [2022-07-14 07:05:10,997 INFO L226 Difference]: Without dead ends: 1361 [2022-07-14 07:05:10,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:10,998 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 306 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:10,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 745 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2022-07-14 07:05:11,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1197. [2022-07-14 07:05:11,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 973 states have (on average 1.381294964028777) internal successors, (1344), 993 states have internal predecessors, (1344), 148 states have call successors, (148), 56 states have call predecessors, (148), 75 states have return successors, (416), 147 states have call predecessors, (416), 141 states have call successors, (416) [2022-07-14 07:05:11,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1908 transitions. [2022-07-14 07:05:11,036 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1908 transitions. Word has length 50 [2022-07-14 07:05:11,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:11,036 INFO L495 AbstractCegarLoop]: Abstraction has 1197 states and 1908 transitions. [2022-07-14 07:05:11,037 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), 3 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 07:05:11,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1908 transitions. [2022-07-14 07:05:11,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 07:05:11,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:11,038 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 07:05:11,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-14 07:05:11,038 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:11,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:11,039 INFO L85 PathProgramCache]: Analyzing trace with hash 33672435, now seen corresponding path program 1 times [2022-07-14 07:05:11,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:11,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271281480] [2022-07-14 07:05:11,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:11,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,226 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 07:05:11,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:11,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271281480] [2022-07-14 07:05:11,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271281480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:11,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:11,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:11,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804868925] [2022-07-14 07:05:11,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:11,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:11,229 INFO L87 Difference]: Start difference. First operand 1197 states and 1908 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:11,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:11,654 INFO L93 Difference]: Finished difference Result 1236 states and 1967 transitions. [2022-07-14 07:05:11,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 07:05:11,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-14 07:05:11,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:11,659 INFO L225 Difference]: With dead ends: 1236 [2022-07-14 07:05:11,660 INFO L226 Difference]: Without dead ends: 1236 [2022-07-14 07:05:11,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:11,661 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 188 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:11,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1119 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:11,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-07-14 07:05:11,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1145. [2022-07-14 07:05:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 921 states have (on average 1.3659066232356134) internal successors, (1258), 941 states have internal predecessors, (1258), 148 states have call successors, (148), 56 states have call predecessors, (148), 75 states have return successors, (416), 147 states have call predecessors, (416), 141 states have call successors, (416) [2022-07-14 07:05:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1822 transitions. [2022-07-14 07:05:11,694 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1822 transitions. Word has length 50 [2022-07-14 07:05:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:11,694 INFO L495 AbstractCegarLoop]: Abstraction has 1145 states and 1822 transitions. [2022-07-14 07:05:11,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 07:05:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1822 transitions. [2022-07-14 07:05:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 07:05:11,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:11,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:11,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-14 07:05:11,696 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:11,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1244659166, now seen corresponding path program 1 times [2022-07-14 07:05:11,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:11,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166146358] [2022-07-14 07:05:11,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:11,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 07:05:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,755 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 07:05:11,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:11,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166146358] [2022-07-14 07:05:11,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166146358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:11,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:11,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 07:05:11,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807107151] [2022-07-14 07:05:11,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:11,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:11,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:11,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:11,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 07:05:11,758 INFO L87 Difference]: Start difference. First operand 1145 states and 1822 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:11,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:11,929 INFO L93 Difference]: Finished difference Result 332 states and 475 transitions. [2022-07-14 07:05:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 07:05:11,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2022-07-14 07:05:11,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:11,932 INFO L225 Difference]: With dead ends: 332 [2022-07-14 07:05:11,933 INFO L226 Difference]: Without dead ends: 332 [2022-07-14 07:05:11,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-14 07:05:11,935 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 246 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:11,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 405 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:11,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-14 07:05:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-07-14 07:05:11,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 260 states have (on average 1.273076923076923) internal successors, (331), 264 states have internal predecessors, (331), 50 states have call successors, (50), 17 states have call predecessors, (50), 21 states have return successors, (94), 50 states have call predecessors, (94), 47 states have call successors, (94) [2022-07-14 07:05:11,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 475 transitions. [2022-07-14 07:05:11,946 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 475 transitions. Word has length 49 [2022-07-14 07:05:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:11,946 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 475 transitions. [2022-07-14 07:05:11,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 07:05:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 475 transitions. [2022-07-14 07:05:11,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 07:05:11,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:11,947 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 07:05:11,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-14 07:05:11,948 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:11,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:11,948 INFO L85 PathProgramCache]: Analyzing trace with hash 929022604, now seen corresponding path program 1 times [2022-07-14 07:05:11,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:11,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888463707] [2022-07-14 07:05:11,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,085 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 07:05:12,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:12,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888463707] [2022-07-14 07:05:12,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888463707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:12,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:12,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:12,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822031973] [2022-07-14 07:05:12,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:12,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:12,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:12,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:12,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:12,088 INFO L87 Difference]: Start difference. First operand 332 states and 475 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 07:05:12,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:12,357 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2022-07-14 07:05:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:12,357 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2022-07-14 07:05:12,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:12,359 INFO L225 Difference]: With dead ends: 327 [2022-07-14 07:05:12,359 INFO L226 Difference]: Without dead ends: 327 [2022-07-14 07:05:12,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:12,360 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 233 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:12,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 624 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-07-14 07:05:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2022-07-14 07:05:12,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 256 states have (on average 1.26171875) internal successors, (323), 260 states have internal predecessors, (323), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (89), 49 states have call predecessors, (89), 47 states have call successors, (89) [2022-07-14 07:05:12,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 462 transitions. [2022-07-14 07:05:12,367 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 462 transitions. Word has length 54 [2022-07-14 07:05:12,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:12,367 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 462 transitions. [2022-07-14 07:05:12,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 07:05:12,368 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 462 transitions. [2022-07-14 07:05:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:05:12,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:12,368 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 07:05:12,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-14 07:05:12,369 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:12,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:12,369 INFO L85 PathProgramCache]: Analyzing trace with hash 677437189, now seen corresponding path program 1 times [2022-07-14 07:05:12,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:12,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970303668] [2022-07-14 07:05:12,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:12,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,443 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 07:05:12,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:12,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970303668] [2022-07-14 07:05:12,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970303668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:12,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:12,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 07:05:12,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690621650] [2022-07-14 07:05:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:12,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 07:05:12,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 07:05:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:12,446 INFO L87 Difference]: Start difference. First operand 327 states and 462 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 5 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 07:05:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:12,613 INFO L93 Difference]: Finished difference Result 339 states and 485 transitions. [2022-07-14 07:05:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 07:05:12,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 5 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 57 [2022-07-14 07:05:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:12,616 INFO L225 Difference]: With dead ends: 339 [2022-07-14 07:05:12,616 INFO L226 Difference]: Without dead ends: 339 [2022-07-14 07:05:12,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-14 07:05:12,617 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 64 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:12,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 700 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-07-14 07:05:12,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 330. [2022-07-14 07:05:12,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 259 states have (on average 1.2586872586872586) internal successors, (326), 263 states have internal predecessors, (326), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (89), 49 states have call predecessors, (89), 47 states have call successors, (89) [2022-07-14 07:05:12,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 465 transitions. [2022-07-14 07:05:12,625 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 465 transitions. Word has length 57 [2022-07-14 07:05:12,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:12,626 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 465 transitions. [2022-07-14 07:05:12,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (6), 5 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 07:05:12,626 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 465 transitions. [2022-07-14 07:05:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 07:05:12,627 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:12,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:12,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-14 07:05:12,627 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:12,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:12,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1289316037, now seen corresponding path program 1 times [2022-07-14 07:05:12,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:12,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244820978] [2022-07-14 07:05:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:12,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:12,739 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 07:05:12,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:12,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244820978] [2022-07-14 07:05:12,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244820978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:12,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:12,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 07:05:12,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688341056] [2022-07-14 07:05:12,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:12,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 07:05:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:12,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 07:05:12,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-14 07:05:12,742 INFO L87 Difference]: Start difference. First operand 330 states and 465 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:05:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:12,992 INFO L93 Difference]: Finished difference Result 333 states and 466 transitions. [2022-07-14 07:05:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 07:05:12,993 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2022-07-14 07:05:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:12,994 INFO L225 Difference]: With dead ends: 333 [2022-07-14 07:05:12,994 INFO L226 Difference]: Without dead ends: 333 [2022-07-14 07:05:12,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:12,995 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:12,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1190 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:12,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-14 07:05:12,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 330. [2022-07-14 07:05:12,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 259 states have (on average 1.247104247104247) internal successors, (323), 263 states have internal predecessors, (323), 50 states have call successors, (50), 17 states have call predecessors, (50), 20 states have return successors, (89), 49 states have call predecessors, (89), 47 states have call successors, (89) [2022-07-14 07:05:12,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 462 transitions. [2022-07-14 07:05:13,000 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 462 transitions. Word has length 57 [2022-07-14 07:05:13,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:13,000 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 462 transitions. [2022-07-14 07:05:13,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 07:05:13,000 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 462 transitions. [2022-07-14 07:05:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-14 07:05:13,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:13,001 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 07:05:13,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-14 07:05:13,001 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:13,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:13,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1579853377, now seen corresponding path program 1 times [2022-07-14 07:05:13,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:13,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158331947] [2022-07-14 07:05:13,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:13,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,115 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 07:05:13,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:13,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158331947] [2022-07-14 07:05:13,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158331947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:13,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:13,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 07:05:13,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354392042] [2022-07-14 07:05:13,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:13,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 07:05:13,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:13,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 07:05:13,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-14 07:05:13,117 INFO L87 Difference]: Start difference. First operand 330 states and 462 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, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:13,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:13,401 INFO L93 Difference]: Finished difference Result 308 states and 421 transitions. [2022-07-14 07:05:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:13,402 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, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2022-07-14 07:05:13,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:13,403 INFO L225 Difference]: With dead ends: 308 [2022-07-14 07:05:13,403 INFO L226 Difference]: Without dead ends: 308 [2022-07-14 07:05:13,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-07-14 07:05:13,403 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 197 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:13,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 925 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 07:05:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-07-14 07:05:13,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300. [2022-07-14 07:05:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 235 states have (on average 1.251063829787234) internal successors, (294), 241 states have internal predecessors, (294), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (68), 41 states have call predecessors, (68), 44 states have call successors, (68) [2022-07-14 07:05:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 409 transitions. [2022-07-14 07:05:13,409 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 409 transitions. Word has length 68 [2022-07-14 07:05:13,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:13,410 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 409 transitions. [2022-07-14 07:05:13,410 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, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:13,410 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 409 transitions. [2022-07-14 07:05:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 07:05:13,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:13,410 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] [2022-07-14 07:05:13,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-14 07:05:13,411 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:13,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2132296105, now seen corresponding path program 1 times [2022-07-14 07:05:13,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:13,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164763584] [2022-07-14 07:05:13,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 07:05:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:13,582 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 07:05:13,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:13,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164763584] [2022-07-14 07:05:13,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164763584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:13,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:13,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-14 07:05:13,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61495398] [2022-07-14 07:05:13,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:13,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 07:05:13,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 07:05:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:13,585 INFO L87 Difference]: Start difference. First operand 300 states and 409 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:14,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:14,052 INFO L93 Difference]: Finished difference Result 333 states and 455 transitions. [2022-07-14 07:05:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 07:05:14,052 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2022-07-14 07:05:14,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:14,053 INFO L225 Difference]: With dead ends: 333 [2022-07-14 07:05:14,053 INFO L226 Difference]: Without dead ends: 315 [2022-07-14 07:05:14,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:14,054 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 125 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:14,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2203 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:14,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-07-14 07:05:14,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 303. [2022-07-14 07:05:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 237 states have (on average 1.248945147679325) internal successors, (296), 244 states have internal predecessors, (296), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (69), 41 states have call predecessors, (69), 44 states have call successors, (69) [2022-07-14 07:05:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 412 transitions. [2022-07-14 07:05:14,061 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 412 transitions. Word has length 73 [2022-07-14 07:05:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:14,061 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 412 transitions. [2022-07-14 07:05:14,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 412 transitions. [2022-07-14 07:05:14,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-14 07:05:14,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:14,062 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] [2022-07-14 07:05:14,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-14 07:05:14,063 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:14,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:14,063 INFO L85 PathProgramCache]: Analyzing trace with hash -2002463371, now seen corresponding path program 1 times [2022-07-14 07:05:14,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:14,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377914249] [2022-07-14 07:05:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 07:05:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,261 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 07:05:14,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:14,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377914249] [2022-07-14 07:05:14,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377914249] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:14,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:14,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-14 07:05:14,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265253608] [2022-07-14 07:05:14,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:14,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 07:05:14,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:14,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 07:05:14,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:14,265 INFO L87 Difference]: Start difference. First operand 303 states and 412 transitions. Second operand has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:14,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:14,738 INFO L93 Difference]: Finished difference Result 337 states and 459 transitions. [2022-07-14 07:05:14,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 07:05:14,739 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2022-07-14 07:05:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:14,740 INFO L225 Difference]: With dead ends: 337 [2022-07-14 07:05:14,740 INFO L226 Difference]: Without dead ends: 319 [2022-07-14 07:05:14,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:14,740 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 126 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:14,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2379 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:14,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-07-14 07:05:14,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 303. [2022-07-14 07:05:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 237 states have (on average 1.248945147679325) internal successors, (296), 244 states have internal predecessors, (296), 47 states have call successors, (47), 17 states have call predecessors, (47), 18 states have return successors, (69), 41 states have call predecessors, (69), 44 states have call successors, (69) [2022-07-14 07:05:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 412 transitions. [2022-07-14 07:05:14,747 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 412 transitions. Word has length 74 [2022-07-14 07:05:14,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:14,747 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 412 transitions. [2022-07-14 07:05:14,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-14 07:05:14,748 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 412 transitions. [2022-07-14 07:05:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-14 07:05:14,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:14,749 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, 1, 1, 1, 1, 1, 1, 1, 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 07:05:14,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-14 07:05:14,749 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:14,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:14,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1293155315, now seen corresponding path program 1 times [2022-07-14 07:05:14,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:14,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255107755] [2022-07-14 07:05:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:14,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 07:05:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-14 07:05:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:14,938 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 07:05:14,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:14,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255107755] [2022-07-14 07:05:14,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255107755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:14,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:14,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-14 07:05:14,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346182616] [2022-07-14 07:05:14,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:14,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-14 07:05:14,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:14,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-14 07:05:14,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:05:14,940 INFO L87 Difference]: Start difference. First operand 303 states and 412 transitions. Second operand has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 07:05:15,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:15,824 INFO L93 Difference]: Finished difference Result 443 states and 663 transitions. [2022-07-14 07:05:15,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-14 07:05:15,825 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 82 [2022-07-14 07:05:15,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:15,826 INFO L225 Difference]: With dead ends: 443 [2022-07-14 07:05:15,827 INFO L226 Difference]: Without dead ends: 415 [2022-07-14 07:05:15,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-07-14 07:05:15,828 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 194 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:15,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2652 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:15,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-07-14 07:05:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 399. [2022-07-14 07:05:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 305 states have (on average 1.259016393442623) internal successors, (384), 316 states have internal predecessors, (384), 74 states have call successors, (74), 17 states have call predecessors, (74), 19 states have return successors, (108), 65 states have call predecessors, (108), 70 states have call successors, (108) [2022-07-14 07:05:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 566 transitions. [2022-07-14 07:05:15,838 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 566 transitions. Word has length 82 [2022-07-14 07:05:15,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:15,839 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 566 transitions. [2022-07-14 07:05:15,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 11 states have internal predecessors, (69), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 07:05:15,839 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 566 transitions. [2022-07-14 07:05:15,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 07:05:15,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:15,840 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 07:05:15,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-14 07:05:15,842 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:15,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:15,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1315841768, now seen corresponding path program 1 times [2022-07-14 07:05:15,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:15,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362072133] [2022-07-14 07:05:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 07:05:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:15,975 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 07:05:15,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:15,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362072133] [2022-07-14 07:05:15,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362072133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:15,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:15,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377809280] [2022-07-14 07:05:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:15,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:15,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:15,977 INFO L87 Difference]: Start difference. First operand 399 states and 566 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-14 07:05:16,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:16,417 INFO L93 Difference]: Finished difference Result 520 states and 710 transitions. [2022-07-14 07:05:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 07:05:16,418 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), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2022-07-14 07:05:16,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:16,419 INFO L225 Difference]: With dead ends: 520 [2022-07-14 07:05:16,419 INFO L226 Difference]: Without dead ends: 520 [2022-07-14 07:05:16,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-07-14 07:05:16,420 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 311 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:16,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1279 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:16,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-07-14 07:05:16,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 478. [2022-07-14 07:05:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 373 states have (on average 1.2520107238605898) internal successors, (467), 383 states have internal predecessors, (467), 77 states have call successors, (77), 23 states have call predecessors, (77), 27 states have return successors, (112), 71 states have call predecessors, (112), 73 states have call successors, (112) [2022-07-14 07:05:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 656 transitions. [2022-07-14 07:05:16,429 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 656 transitions. Word has length 84 [2022-07-14 07:05:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:16,430 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 656 transitions. [2022-07-14 07:05:16,430 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), 4 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-14 07:05:16,430 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 656 transitions. [2022-07-14 07:05:16,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 07:05:16,431 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:16,431 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 07:05:16,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-14 07:05:16,431 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:16,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1543379991, now seen corresponding path program 1 times [2022-07-14 07:05:16,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:16,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802879807] [2022-07-14 07:05:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:16,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 07:05:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:16,550 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 07:05:16,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:16,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802879807] [2022-07-14 07:05:16,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802879807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:16,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:16,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:16,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618418450] [2022-07-14 07:05:16,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:16,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:16,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:16,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:16,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:16,553 INFO L87 Difference]: Start difference. First operand 478 states and 656 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-14 07:05:17,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:17,052 INFO L93 Difference]: Finished difference Result 478 states and 646 transitions. [2022-07-14 07:05:17,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 07:05:17,053 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2022-07-14 07:05:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:17,054 INFO L225 Difference]: With dead ends: 478 [2022-07-14 07:05:17,054 INFO L226 Difference]: Without dead ends: 478 [2022-07-14 07:05:17,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-07-14 07:05:17,055 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 453 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:17,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 812 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 07:05:17,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-07-14 07:05:17,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2022-07-14 07:05:17,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 373 states have (on average 1.2466487935656836) internal successors, (465), 383 states have internal predecessors, (465), 77 states have call successors, (77), 23 states have call predecessors, (77), 27 states have return successors, (104), 71 states have call predecessors, (104), 73 states have call successors, (104) [2022-07-14 07:05:17,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 646 transitions. [2022-07-14 07:05:17,063 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 646 transitions. Word has length 84 [2022-07-14 07:05:17,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:17,064 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 646 transitions. [2022-07-14 07:05:17,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-07-14 07:05:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 646 transitions. [2022-07-14 07:05:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-14 07:05:17,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:17,065 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] [2022-07-14 07:05:17,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-14 07:05:17,066 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:17,066 INFO L85 PathProgramCache]: Analyzing trace with hash -654013751, now seen corresponding path program 1 times [2022-07-14 07:05:17,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:17,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963152895] [2022-07-14 07:05:17,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:17,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 07:05:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-14 07:05:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:17,290 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 07:05:17,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:17,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963152895] [2022-07-14 07:05:17,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963152895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:17,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:17,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-14 07:05:17,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409312077] [2022-07-14 07:05:17,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:17,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-14 07:05:17,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:17,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-14 07:05:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-14 07:05:17,292 INFO L87 Difference]: Start difference. First operand 478 states and 646 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 07:05:18,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:18,201 INFO L93 Difference]: Finished difference Result 628 states and 917 transitions. [2022-07-14 07:05:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-14 07:05:18,202 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 83 [2022-07-14 07:05:18,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:18,204 INFO L225 Difference]: With dead ends: 628 [2022-07-14 07:05:18,204 INFO L226 Difference]: Without dead ends: 592 [2022-07-14 07:05:18,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2022-07-14 07:05:18,205 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 222 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:18,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 2187 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:18,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-07-14 07:05:18,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 475. [2022-07-14 07:05:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 371 states have (on average 1.247978436657682) internal successors, (463), 380 states have internal predecessors, (463), 77 states have call successors, (77), 23 states have call predecessors, (77), 26 states have return successors, (103), 71 states have call predecessors, (103), 73 states have call successors, (103) [2022-07-14 07:05:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 643 transitions. [2022-07-14 07:05:18,217 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 643 transitions. Word has length 83 [2022-07-14 07:05:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:18,217 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 643 transitions. [2022-07-14 07:05:18,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (7), 6 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 07:05:18,218 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 643 transitions. [2022-07-14 07:05:18,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 07:05:18,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:18,219 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, 1, 1, 1, 1, 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 07:05:18,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-14 07:05:18,219 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:18,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:18,220 INFO L85 PathProgramCache]: Analyzing trace with hash -177974759, now seen corresponding path program 1 times [2022-07-14 07:05:18,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:18,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834769125] [2022-07-14 07:05:18,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:18,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 07:05:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:18,380 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 07:05:18,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:18,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834769125] [2022-07-14 07:05:18,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834769125] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:18,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:18,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-14 07:05:18,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117919155] [2022-07-14 07:05:18,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:18,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-14 07:05:18,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:18,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-14 07:05:18,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:18,384 INFO L87 Difference]: Start difference. First operand 475 states and 643 transitions. Second operand has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 07:05:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:19,136 INFO L93 Difference]: Finished difference Result 927 states and 1259 transitions. [2022-07-14 07:05:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-14 07:05:19,136 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2022-07-14 07:05:19,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:19,142 INFO L225 Difference]: With dead ends: 927 [2022-07-14 07:05:19,142 INFO L226 Difference]: Without dead ends: 906 [2022-07-14 07:05:19,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=739, Unknown=0, NotChecked=0, Total=870 [2022-07-14 07:05:19,145 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 348 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:19,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 2135 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:19,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-07-14 07:05:19,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 567. [2022-07-14 07:05:19,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 447 states have (on average 1.2170022371364653) internal successors, (544), 459 states have internal predecessors, (544), 83 states have call successors, (83), 29 states have call predecessors, (83), 36 states have return successors, (113), 78 states have call predecessors, (113), 79 states have call successors, (113) [2022-07-14 07:05:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 740 transitions. [2022-07-14 07:05:19,158 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 740 transitions. Word has length 84 [2022-07-14 07:05:19,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:19,158 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 740 transitions. [2022-07-14 07:05:19,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 07:05:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 740 transitions. [2022-07-14 07:05:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 07:05:19,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:19,160 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 07:05:19,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-14 07:05:19,160 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:19,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1320477225, now seen corresponding path program 1 times [2022-07-14 07:05:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:19,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94611986] [2022-07-14 07:05:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:19,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 07:05:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 07:05:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:19,330 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 07:05:19,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:19,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94611986] [2022-07-14 07:05:19,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94611986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:19,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:19,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-14 07:05:19,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184432279] [2022-07-14 07:05:19,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:19,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-14 07:05:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:19,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-14 07:05:19,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:19,333 INFO L87 Difference]: Start difference. First operand 567 states and 740 transitions. Second operand has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 07:05:20,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:20,071 INFO L93 Difference]: Finished difference Result 924 states and 1251 transitions. [2022-07-14 07:05:20,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-14 07:05:20,072 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2022-07-14 07:05:20,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:20,075 INFO L225 Difference]: With dead ends: 924 [2022-07-14 07:05:20,075 INFO L226 Difference]: Without dead ends: 899 [2022-07-14 07:05:20,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=787, Unknown=0, NotChecked=0, Total=930 [2022-07-14 07:05:20,076 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 320 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:20,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 3023 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 07:05:20,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2022-07-14 07:05:20,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 468. [2022-07-14 07:05:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 366 states have (on average 1.2486338797814207) internal successors, (457), 375 states have internal predecessors, (457), 75 states have call successors, (75), 23 states have call predecessors, (75), 26 states have return successors, (100), 69 states have call predecessors, (100), 71 states have call successors, (100) [2022-07-14 07:05:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 632 transitions. [2022-07-14 07:05:20,089 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 632 transitions. Word has length 84 [2022-07-14 07:05:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:20,089 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 632 transitions. [2022-07-14 07:05:20,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.4375) internal successors, (71), 10 states have internal predecessors, (71), 4 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 07:05:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 632 transitions. [2022-07-14 07:05:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 07:05:20,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:20,091 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:20,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-14 07:05:20,092 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:20,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1169943443, now seen corresponding path program 1 times [2022-07-14 07:05:20,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:20,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461425915] [2022-07-14 07:05:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:20,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:20,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 07:05:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 07:05:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:20,285 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 07:05:20,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:20,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461425915] [2022-07-14 07:05:20,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461425915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:20,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:20,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-14 07:05:20,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782241715] [2022-07-14 07:05:20,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:20,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 07:05:20,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:20,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 07:05:20,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:20,287 INFO L87 Difference]: Start difference. First operand 468 states and 632 transitions. Second operand has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 07:05:21,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:21,232 INFO L93 Difference]: Finished difference Result 929 states and 1255 transitions. [2022-07-14 07:05:21,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-14 07:05:21,233 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 93 [2022-07-14 07:05:21,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:21,235 INFO L225 Difference]: With dead ends: 929 [2022-07-14 07:05:21,235 INFO L226 Difference]: Without dead ends: 885 [2022-07-14 07:05:21,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 07:05:21,237 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 439 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:21,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 2251 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 07:05:21,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-07-14 07:05:21,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 858. [2022-07-14 07:05:21,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 666 states have (on average 1.2147147147147148) internal successors, (809), 684 states have internal predecessors, (809), 142 states have call successors, (142), 43 states have call predecessors, (142), 49 states have return successors, (185), 130 states have call predecessors, (185), 137 states have call successors, (185) [2022-07-14 07:05:21,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1136 transitions. [2022-07-14 07:05:21,253 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1136 transitions. Word has length 93 [2022-07-14 07:05:21,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:21,253 INFO L495 AbstractCegarLoop]: Abstraction has 858 states and 1136 transitions. [2022-07-14 07:05:21,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 07:05:21,254 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1136 transitions. [2022-07-14 07:05:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-14 07:05:21,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:21,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-14 07:05:21,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-14 07:05:21,256 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:21,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash -274894159, now seen corresponding path program 1 times [2022-07-14 07:05:21,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:21,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326946572] [2022-07-14 07:05:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:21,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 07:05:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-14 07:05:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-14 07:05:21,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:21,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326946572] [2022-07-14 07:05:21,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326946572] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:21,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:21,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:21,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896828879] [2022-07-14 07:05:21,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:21,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:21,391 INFO L87 Difference]: Start difference. First operand 858 states and 1136 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 07:05:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:21,802 INFO L93 Difference]: Finished difference Result 1142 states and 1584 transitions. [2022-07-14 07:05:21,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:21,802 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 95 [2022-07-14 07:05:21,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:21,806 INFO L225 Difference]: With dead ends: 1142 [2022-07-14 07:05:21,806 INFO L226 Difference]: Without dead ends: 1142 [2022-07-14 07:05:21,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:21,807 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 158 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:21,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1346 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-07-14 07:05:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 834. [2022-07-14 07:05:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 650 states have (on average 1.1953846153846155) internal successors, (777), 664 states have internal predecessors, (777), 134 states have call successors, (134), 43 states have call predecessors, (134), 49 states have return successors, (173), 126 states have call predecessors, (173), 129 states have call successors, (173) [2022-07-14 07:05:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1084 transitions. [2022-07-14 07:05:21,823 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1084 transitions. Word has length 95 [2022-07-14 07:05:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:21,823 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1084 transitions. [2022-07-14 07:05:21,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 07:05:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1084 transitions. [2022-07-14 07:05:21,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 07:05:21,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:21,825 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 07:05:21,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-14 07:05:21,825 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1940677009, now seen corresponding path program 1 times [2022-07-14 07:05:21,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:21,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699407729] [2022-07-14 07:05:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 07:05:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 07:05:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 07:05:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:22,005 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 07:05:22,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:22,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699407729] [2022-07-14 07:05:22,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699407729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:22,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:22,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-14 07:05:22,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187566760] [2022-07-14 07:05:22,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:22,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 07:05:22,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:22,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 07:05:22,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-14 07:05:22,007 INFO L87 Difference]: Start difference. First operand 834 states and 1084 transitions. Second operand has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 07:05:23,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:23,161 INFO L93 Difference]: Finished difference Result 855 states and 1113 transitions. [2022-07-14 07:05:23,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-14 07:05:23,162 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 93 [2022-07-14 07:05:23,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:23,164 INFO L225 Difference]: With dead ends: 855 [2022-07-14 07:05:23,164 INFO L226 Difference]: Without dead ends: 809 [2022-07-14 07:05:23,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 07:05:23,165 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 342 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:23,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 3194 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 07:05:23,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-07-14 07:05:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 306. [2022-07-14 07:05:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 242 states have (on average 1.1363636363636365) internal successors, (275), 247 states have internal predecessors, (275), 41 states have call successors, (41), 21 states have call predecessors, (41), 22 states have return successors, (48), 37 states have call predecessors, (48), 38 states have call successors, (48) [2022-07-14 07:05:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 364 transitions. [2022-07-14 07:05:23,173 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 364 transitions. Word has length 93 [2022-07-14 07:05:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:23,174 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 364 transitions. [2022-07-14 07:05:23,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 10 states have internal predecessors, (78), 4 states have call successors, (8), 7 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 07:05:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 364 transitions. [2022-07-14 07:05:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-14 07:05:23,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:23,175 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 07:05:23,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-14 07:05:23,176 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:23,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:23,176 INFO L85 PathProgramCache]: Analyzing trace with hash -369931013, now seen corresponding path program 1 times [2022-07-14 07:05:23,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:23,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218434299] [2022-07-14 07:05:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:23,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 07:05:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-14 07:05:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-14 07:05:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 07:05:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-14 07:05:23,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:23,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218434299] [2022-07-14 07:05:23,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218434299] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 07:05:23,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759323794] [2022-07-14 07:05:23,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:23,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 07:05:23,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 07:05:23,307 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 07:05:23,327 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 07:05:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:23,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 07:05:23,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 07:05:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-14 07:05:23,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 07:05:23,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759323794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:23,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 07:05:23,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-07-14 07:05:23,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813849694] [2022-07-14 07:05:23,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:23,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 07:05:23,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:23,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 07:05:23,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-07-14 07:05:23,707 INFO L87 Difference]: Start difference. First operand 306 states and 364 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 07:05:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:23,788 INFO L93 Difference]: Finished difference Result 328 states and 392 transitions. [2022-07-14 07:05:23,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 07:05:23,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 133 [2022-07-14 07:05:23,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:23,790 INFO L225 Difference]: With dead ends: 328 [2022-07-14 07:05:23,790 INFO L226 Difference]: Without dead ends: 327 [2022-07-14 07:05:23,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:23,791 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 12 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:23,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 715 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 07:05:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-07-14 07:05:23,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 322. [2022-07-14 07:05:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 256 states have (on average 1.12890625) internal successors, (289), 262 states have internal predecessors, (289), 41 states have call successors, (41), 21 states have call predecessors, (41), 24 states have return successors, (55), 38 states have call predecessors, (55), 38 states have call successors, (55) [2022-07-14 07:05:23,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 385 transitions. [2022-07-14 07:05:23,797 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 385 transitions. Word has length 133 [2022-07-14 07:05:23,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:23,797 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 385 transitions. [2022-07-14 07:05:23,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 07:05:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 385 transitions. [2022-07-14 07:05:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-14 07:05:23,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:23,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 07:05:23,828 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 07:05:24,000 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,SelfDestructingSolverStorable47 [2022-07-14 07:05:24,000 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:24,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2141054115, now seen corresponding path program 1 times [2022-07-14 07:05:24,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:24,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115467802] [2022-07-14 07:05:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:24,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 07:05:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-14 07:05:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 07:05:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 07:05:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-14 07:05:24,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:24,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115467802] [2022-07-14 07:05:24,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115467802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:24,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:24,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:24,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892493581] [2022-07-14 07:05:24,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:24,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:24,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:24,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:24,144 INFO L87 Difference]: Start difference. First operand 322 states and 385 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 07:05:24,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:24,517 INFO L93 Difference]: Finished difference Result 362 states and 442 transitions. [2022-07-14 07:05:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:24,518 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 134 [2022-07-14 07:05:24,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:24,519 INFO L225 Difference]: With dead ends: 362 [2022-07-14 07:05:24,519 INFO L226 Difference]: Without dead ends: 362 [2022-07-14 07:05:24,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:24,520 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 138 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:24,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 968 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:24,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-07-14 07:05:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 315. [2022-07-14 07:05:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 251 states have (on average 1.1155378486055776) internal successors, (280), 256 states have internal predecessors, (280), 39 states have call successors, (39), 21 states have call predecessors, (39), 24 states have return successors, (51), 37 states have call predecessors, (51), 36 states have call successors, (51) [2022-07-14 07:05:24,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 370 transitions. [2022-07-14 07:05:24,525 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 370 transitions. Word has length 134 [2022-07-14 07:05:24,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:24,526 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 370 transitions. [2022-07-14 07:05:24,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-14 07:05:24,526 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 370 transitions. [2022-07-14 07:05:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-07-14 07:05:24,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:24,528 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-07-14 07:05:24,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-14 07:05:24,529 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:24,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:24,529 INFO L85 PathProgramCache]: Analyzing trace with hash 437867423, now seen corresponding path program 1 times [2022-07-14 07:05:24,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:24,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700924684] [2022-07-14 07:05:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:24,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 07:05:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-14 07:05:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 07:05:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 07:05:24,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 07:05:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 07:05:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-07-14 07:05:24,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:24,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700924684] [2022-07-14 07:05:24,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700924684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:24,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:24,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462455067] [2022-07-14 07:05:24,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:24,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:24,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:24,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:24,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:24,679 INFO L87 Difference]: Start difference. First operand 315 states and 370 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-14 07:05:25,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:25,032 INFO L93 Difference]: Finished difference Result 317 states and 376 transitions. [2022-07-14 07:05:25,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:25,032 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 170 [2022-07-14 07:05:25,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:25,034 INFO L225 Difference]: With dead ends: 317 [2022-07-14 07:05:25,034 INFO L226 Difference]: Without dead ends: 317 [2022-07-14 07:05:25,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:25,034 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 123 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:25,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 913 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-07-14 07:05:25,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 217. [2022-07-14 07:05:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 176 states have (on average 1.1136363636363635) internal successors, (196), 178 states have internal predecessors, (196), 24 states have call successors, (24), 14 states have call predecessors, (24), 16 states have return successors, (30), 24 states have call predecessors, (30), 22 states have call successors, (30) [2022-07-14 07:05:25,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 250 transitions. [2022-07-14 07:05:25,039 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 250 transitions. Word has length 170 [2022-07-14 07:05:25,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:25,039 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 250 transitions. [2022-07-14 07:05:25,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-14 07:05:25,039 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 250 transitions. [2022-07-14 07:05:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-14 07:05:25,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 07:05:25,041 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-07-14 07:05:25,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-14 07:05:25,041 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-14 07:05:25,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 07:05:25,042 INFO L85 PathProgramCache]: Analyzing trace with hash 507971218, now seen corresponding path program 1 times [2022-07-14 07:05:25,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 07:05:25,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234176078] [2022-07-14 07:05:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 07:05:25,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 07:05:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 07:05:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 07:05:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 07:05:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-14 07:05:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 07:05:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 07:05:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 07:05:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 07:05:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 07:05:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 07:05:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 07:05:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-07-14 07:05:25,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 07:05:25,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234176078] [2022-07-14 07:05:25,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234176078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 07:05:25,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 07:05:25,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 07:05:25,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837079156] [2022-07-14 07:05:25,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 07:05:25,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 07:05:25,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 07:05:25,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 07:05:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 07:05:25,217 INFO L87 Difference]: Start difference. First operand 217 states and 250 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-14 07:05:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 07:05:25,541 INFO L93 Difference]: Finished difference Result 209 states and 241 transitions. [2022-07-14 07:05:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 07:05:25,542 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 173 [2022-07-14 07:05:25,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 07:05:25,542 INFO L225 Difference]: With dead ends: 209 [2022-07-14 07:05:25,542 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 07:05:25,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-14 07:05:25,543 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 98 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 07:05:25,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 667 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 07:05:25,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 07:05:25,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 07:05:25,544 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 07:05:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 07:05:25,544 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 173 [2022-07-14 07:05:25,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 07:05:25,544 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 07:05:25,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-14 07:05:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 07:05:25,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 07:05:25,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-07-14 07:05:25,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-07-14 07:05:25,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-14 07:05:25,550 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] [2022-07-14 07:05:25,552 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 07:05:25,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 07:05:25 BoogieIcfgContainer [2022-07-14 07:05:25,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 07:05:25,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 07:05:25,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 07:05:25,555 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 07:05:25,555 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 07:05:25,557 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 07:05:25,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IoBuildDeviceIoControlRequest [2022-07-14 07:05:25,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure KeWaitForSingleObject [2022-07-14 07:05:25,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure DiskPerfForwardIrpSynchronous [2022-07-14 07:05:25,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCompleteRequest [2022-07-14 07:05:25,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure errorFn [2022-07-14 07:05:25,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure IofCallDriver [2022-07-14 07:05:25,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure DiskPerfIrpCompletion [2022-07-14 07:05:25,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure stubMoreProcessingRequired [2022-07-14 07:05:25,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure DiskPerfIoCompletion [2022-07-14 07:05:25,588 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-07-14 07:05:25,591 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-07-14 07:05:25,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-14 07:05:25,593 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 07:05:25,682 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 07:05:25,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 07:05:25,683 INFO L158 Benchmark]: Toolchain (without parser) took 26760.10ms. Allocated memory was 83.9MB in the beginning and 226.5MB in the end (delta: 142.6MB). Free memory was 45.1MB in the beginning and 104.2MB in the end (delta: -59.2MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2022-07-14 07:05:25,683 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 07:05:25,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.47ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.9MB in the beginning and 74.0MB in the end (delta: -29.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-07-14 07:05:25,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.62ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 69.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 07:05:25,684 INFO L158 Benchmark]: Boogie Preprocessor took 62.43ms. Allocated memory is still 104.9MB. Free memory was 69.8MB in the beginning and 66.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 07:05:25,684 INFO L158 Benchmark]: RCFGBuilder took 895.31ms. Allocated memory is still 104.9MB. Free memory was 65.6MB in the beginning and 70.7MB in the end (delta: -5.1MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2022-07-14 07:05:25,684 INFO L158 Benchmark]: TraceAbstraction took 25185.95ms. Allocated memory was 104.9MB in the beginning and 226.5MB in the end (delta: 121.6MB). Free memory was 70.2MB in the beginning and 118.9MB in the end (delta: -48.7MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. [2022-07-14 07:05:25,685 INFO L158 Benchmark]: Witness Printer took 128.36ms. Allocated memory is still 226.5MB. Free memory was 118.9MB in the beginning and 104.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-14 07:05:25,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.47ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 44.9MB in the beginning and 74.0MB in the end (delta: -29.1MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.62ms. Allocated memory is still 104.9MB. Free memory was 74.0MB in the beginning and 69.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.43ms. Allocated memory is still 104.9MB. Free memory was 69.8MB in the beginning and 66.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 895.31ms. Allocated memory is still 104.9MB. Free memory was 65.6MB in the beginning and 70.7MB in the end (delta: -5.1MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * TraceAbstraction took 25185.95ms. Allocated memory was 104.9MB in the beginning and 226.5MB in the end (delta: 121.6MB). Free memory was 70.2MB in the beginning and 118.9MB in the end (delta: -48.7MB). Peak memory consumption was 72.8MB. Max. memory is 16.1GB. * Witness Printer took 128.36ms. Allocated memory is still 226.5MB. Free memory was 118.9MB in the beginning and 104.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 56]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 647]: 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 10 procedures, 244 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 25.1s, OverallIterations: 51, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 17.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10921 SdHoareTripleChecker+Valid, 14.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10672 mSDsluCounter, 59255 SdHoareTripleChecker+Invalid, 11.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45101 mSDsCounter, 2996 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23909 IncrementalHoareTripleChecker+Invalid, 26905 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2996 mSolverCounterUnsat, 14154 mSDtfsCounter, 23909 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1045 GetRequests, 495 SyntacticMatches, 3 SemanticMatches, 547 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1197occurred in iteration=30, InterpolantAutomatonStates: 500, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 51 MinimizatonAttempts, 5084 StatesRemovedByMinimization, 44 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2987 NumberOfCodeBlocks, 2987 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 2935 ConstructedInterpolants, 0 QuantifiedInterpolants, 7423 SizeOfPredicates, 1 NumberOfNonLiveVariables, 868 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 52 InterpolantComputations, 51 PerfectInterpolantSequences, 552/558 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 07:05:25,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE