/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-pthread/cs_stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 16:55:56,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 16:55:56,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 16:55:56,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 16:55:56,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 16:55:56,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 16:55:56,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 16:55:56,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 16:55:56,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 16:55:56,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 16:55:56,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 16:55:56,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 16:55:56,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 16:55:56,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 16:55:56,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 16:55:56,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 16:55:56,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 16:55:56,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 16:55:56,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 16:55:56,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 16:55:56,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 16:55:56,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 16:55:56,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 16:55:56,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 16:55:56,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 16:55:56,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 16:55:56,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 16:55:56,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 16:55:56,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 16:55:56,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 16:55:56,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 16:55:56,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 16:55:56,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 16:55:56,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 16:55:56,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 16:55:56,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 16:55:56,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 16:55:57,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 16:55:57,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 16:55:57,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 16:55:57,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 16:55:57,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 16:55:57,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 16:55:57,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 16:55:57,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 16:55:57,005 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 16:55:57,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 16:55:57,005 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 16:55:57,005 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 16:55:57,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 16:55:57,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 16:55:57,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 16:55:57,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 16:55:57,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 16:55:57,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 16:55:57,007 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 16:55:57,007 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 16:55:57,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 16:55:57,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 16:55:57,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 16:55:57,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 16:55:57,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 16:55:57,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 16:55:57,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:55:57,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 16:55:57,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 16:55:57,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 16:55:57,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 16:55:57,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 16:55:57,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 16:55:57,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 16:55:57,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 16:55:57,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 16:55:57,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 16:55:57,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 16:55:57,399 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 16:55:57,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_stack-1.i [2022-10-16 16:55:57,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/223d8e97a/00015cfb37d34ca4a3348c2fc56c5d09/FLAGf89bf270d [2022-10-16 16:55:58,301 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 16:55:58,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stack-1.i [2022-10-16 16:55:58,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/223d8e97a/00015cfb37d34ca4a3348c2fc56c5d09/FLAGf89bf270d [2022-10-16 16:55:58,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/223d8e97a/00015cfb37d34ca4a3348c2fc56c5d09 [2022-10-16 16:55:58,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 16:55:58,489 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 16:55:58,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 16:55:58,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 16:55:58,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 16:55:58,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:55:58" (1/1) ... [2022-10-16 16:55:58,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e83774b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:58, skipping insertion in model container [2022-10-16 16:55:58,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:55:58" (1/1) ... [2022-10-16 16:55:58,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 16:55:58,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 16:55:59,174 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/seq-pthread/cs_stack-1.i[34744,34757] [2022-10-16 16:55:59,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:55:59,371 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 16:55:59,409 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/seq-pthread/cs_stack-1.i[34744,34757] [2022-10-16 16:55:59,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:55:59,673 INFO L208 MainTranslator]: Completed translation [2022-10-16 16:55:59,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59 WrapperNode [2022-10-16 16:55:59,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 16:55:59,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 16:55:59,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 16:55:59,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 16:55:59,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,803 INFO L138 Inliner]: procedures = 254, calls = 276, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 654 [2022-10-16 16:55:59,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 16:55:59,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 16:55:59,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 16:55:59,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 16:55:59,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 16:55:59,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 16:55:59,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 16:55:59,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 16:55:59,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (1/1) ... [2022-10-16 16:55:59,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:55:59,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:55:59,944 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) [2022-10-16 16:55:59,988 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 [2022-10-16 16:56:00,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 16:56:00,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 16:56:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 16:56:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-10-16 16:56:00,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-10-16 16:56:00,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 16:56:00,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 16:56:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 16:56:00,044 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-10-16 16:56:00,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-10-16 16:56:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 16:56:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 16:56:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure get_top [2022-10-16 16:56:00,046 INFO L138 BoogieDeclarations]: Found implementation of procedure get_top [2022-10-16 16:56:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 16:56:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 16:56:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-10-16 16:56:00,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-10-16 16:56:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-10-16 16:56:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-10-16 16:56:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:56:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:56:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-16 16:56:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-16 16:56:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-10-16 16:56:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-10-16 16:56:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 16:56:00,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 16:56:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 16:56:00,258 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 16:56:00,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 16:56:00,338 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,338 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != ~__CS_ret~0 % 256;#res := 0; [2022-10-16 16:56:00,373 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256; [2022-10-16 16:56:00,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume 0 != ~__CS_ret~0 % 256; [2022-10-16 16:56:00,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L933: SUMMARY for call __CS_cs(); srcloc: null [2022-10-16 16:56:00,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-1: assume 0 != ~__CS_ret~0 % 256; [2022-10-16 16:56:00,375 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L933-1: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,375 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != ~__CS_ret~0 % 256; [2022-10-16 16:56:00,996 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##97: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume 0 != ~__CS_ret~0 % 256;push_#res#1 := 0; [2022-10-16 16:56:00,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-10-16 16:56:00,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##58: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,997 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##57: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-10-16 16:56:00,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:00,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-10-16 16:56:00,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1005: assume 0 != ~__CS_ret~0 % 256;pop_#res#1 := 0; [2022-10-16 16:56:00,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L1005: assume !(0 != ~__CS_ret~0 % 256);pop_#res#1 := 0; [2022-10-16 16:56:00,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L989-2: SUMMARY for call __CS_cs(); srcloc: null [2022-10-16 16:56:00,998 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume 0 != ~__CS_ret~0 % 256;push_#res#1 := 0; [2022-10-16 16:56:00,999 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:03,574 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 16:56:03,585 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 16:56:03,586 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-16 16:56:03,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:56:03 BoogieIcfgContainer [2022-10-16 16:56:03,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 16:56:03,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 16:56:03,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 16:56:03,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 16:56:03,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:55:58" (1/3) ... [2022-10-16 16:56:03,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39285cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:56:03, skipping insertion in model container [2022-10-16 16:56:03,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:55:59" (2/3) ... [2022-10-16 16:56:03,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39285cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:56:03, skipping insertion in model container [2022-10-16 16:56:03,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:56:03" (3/3) ... [2022-10-16 16:56:03,599 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stack-1.i [2022-10-16 16:56:03,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 16:56:03,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-10-16 16:56:03,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 16:56:03,705 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@195c200, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 16:56:03,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-10-16 16:56:03,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 268 states, 163 states have (on average 1.5889570552147239) internal successors, (259), 187 states have internal predecessors, (259), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-10-16 16:56:03,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 16:56:03,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:03,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 16:56:03,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:03,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:03,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1938572460, now seen corresponding path program 1 times [2022-10-16 16:56:03,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:03,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223441429] [2022-10-16 16:56:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:04,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:04,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:04,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223441429] [2022-10-16 16:56:04,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223441429] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:04,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:04,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:04,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148679487] [2022-10-16 16:56:04,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:04,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:04,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:04,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:04,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:04,341 INFO L87 Difference]: Start difference. First operand has 268 states, 163 states have (on average 1.5889570552147239) internal successors, (259), 187 states have internal predecessors, (259), 73 states have call successors, (73), 9 states have call predecessors, (73), 9 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-10-16 16:56:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:04,539 INFO L93 Difference]: Finished difference Result 536 states and 891 transitions. [2022-10-16 16:56:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:04,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-10-16 16:56:04,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:04,568 INFO L225 Difference]: With dead ends: 536 [2022-10-16 16:56:04,568 INFO L226 Difference]: Without dead ends: 233 [2022-10-16 16:56:04,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:04,587 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 8 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:04,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1144 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-10-16 16:56:04,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2022-10-16 16:56:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 146 states have (on average 1.5410958904109588) internal successors, (225), 162 states have internal predecessors, (225), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 342 transitions. [2022-10-16 16:56:04,687 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 342 transitions. Word has length 6 [2022-10-16 16:56:04,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:04,688 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 342 transitions. [2022-10-16 16:56:04,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-10-16 16:56:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 342 transitions. [2022-10-16 16:56:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 16:56:04,689 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:04,689 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:04,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 16:56:04,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:04,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:04,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1774677272, now seen corresponding path program 1 times [2022-10-16 16:56:04,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:04,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875365856] [2022-10-16 16:56:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:04,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:04,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 16:56:04,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:04,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875365856] [2022-10-16 16:56:04,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875365856] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:04,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:04,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:04,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614199300] [2022-10-16 16:56:04,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:04,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:04,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:04,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:04,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:04,895 INFO L87 Difference]: Start difference. First operand 228 states and 342 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 16:56:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:04,971 INFO L93 Difference]: Finished difference Result 233 states and 347 transitions. [2022-10-16 16:56:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:04,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-10-16 16:56:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:04,976 INFO L225 Difference]: With dead ends: 233 [2022-10-16 16:56:04,976 INFO L226 Difference]: Without dead ends: 232 [2022-10-16 16:56:04,977 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 [2022-10-16 16:56:04,979 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 10 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:04,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 980 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-10-16 16:56:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2022-10-16 16:56:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 161 states have internal predecessors, (224), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 341 transitions. [2022-10-16 16:56:05,010 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 341 transitions. Word has length 10 [2022-10-16 16:56:05,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:05,011 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 341 transitions. [2022-10-16 16:56:05,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 16:56:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 341 transitions. [2022-10-16 16:56:05,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 16:56:05,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:05,012 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:56:05,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 16:56:05,013 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:05,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 819579941, now seen corresponding path program 1 times [2022-10-16 16:56:05,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:05,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985493281] [2022-10-16 16:56:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:05,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:05,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985493281] [2022-10-16 16:56:05,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985493281] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:05,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409076199] [2022-10-16 16:56:05,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:05,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:05,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:05,301 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) [2022-10-16 16:56:05,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 16:56:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:05,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 16:56:05,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:05,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:05,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409076199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:05,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:05,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 16:56:05,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494858343] [2022-10-16 16:56:05,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:05,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:56:05,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:05,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:56:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:56:05,590 INFO L87 Difference]: Start difference. First operand 227 states and 341 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-10-16 16:56:05,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:05,732 INFO L93 Difference]: Finished difference Result 246 states and 367 transitions. [2022-10-16 16:56:05,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 16:56:05,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-10-16 16:56:05,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:05,737 INFO L225 Difference]: With dead ends: 246 [2022-10-16 16:56:05,738 INFO L226 Difference]: Without dead ends: 245 [2022-10-16 16:56:05,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:56:05,740 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 30 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:05,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1687 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:05,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-10-16 16:56:05,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 223. [2022-10-16 16:56:05,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 157 states have internal predecessors, (220), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:05,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 337 transitions. [2022-10-16 16:56:05,770 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 337 transitions. Word has length 11 [2022-10-16 16:56:05,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:05,770 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 337 transitions. [2022-10-16 16:56:05,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-10-16 16:56:05,771 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 337 transitions. [2022-10-16 16:56:05,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 16:56:05,772 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:05,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:05,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 16:56:05,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:05,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:05,988 INFO L85 PathProgramCache]: Analyzing trace with hash -364419890, now seen corresponding path program 1 times [2022-10-16 16:56:05,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:05,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432716993] [2022-10-16 16:56:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:05,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:06,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:06,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432716993] [2022-10-16 16:56:06,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432716993] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:06,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452791679] [2022-10-16 16:56:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:06,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:06,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:06,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:06,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 16:56:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:06,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:56:06,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:06,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:06,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:06,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452791679] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:06,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:06,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 16:56:06,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261990975] [2022-10-16 16:56:06,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:06,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 16:56:06,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:06,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 16:56:06,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:56:06,430 INFO L87 Difference]: Start difference. First operand 223 states and 337 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-10-16 16:56:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:06,570 INFO L93 Difference]: Finished difference Result 457 states and 687 transitions. [2022-10-16 16:56:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 16:56:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 12 [2022-10-16 16:56:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:06,574 INFO L225 Difference]: With dead ends: 457 [2022-10-16 16:56:06,574 INFO L226 Difference]: Without dead ends: 236 [2022-10-16 16:56:06,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 16:56:06,583 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 23 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:06,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1632 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-10-16 16:56:06,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 231. [2022-10-16 16:56:06,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 151 states have (on average 1.509933774834437) internal successors, (228), 165 states have internal predecessors, (228), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:06,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 345 transitions. [2022-10-16 16:56:06,628 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 345 transitions. Word has length 12 [2022-10-16 16:56:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:06,628 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 345 transitions. [2022-10-16 16:56:06,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-10-16 16:56:06,629 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 345 transitions. [2022-10-16 16:56:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 16:56:06,633 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:06,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:06,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:06,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 16:56:06,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:06,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:06,848 INFO L85 PathProgramCache]: Analyzing trace with hash 934529350, now seen corresponding path program 2 times [2022-10-16 16:56:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:06,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123015708] [2022-10-16 16:56:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:06,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:56:07,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:07,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123015708] [2022-10-16 16:56:07,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123015708] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:07,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:07,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:07,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613997343] [2022-10-16 16:56:07,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:07,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:07,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:07,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:07,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:07,011 INFO L87 Difference]: Start difference. First operand 231 states and 345 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-10-16 16:56:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:07,080 INFO L93 Difference]: Finished difference Result 236 states and 350 transitions. [2022-10-16 16:56:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:07,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 20 [2022-10-16 16:56:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:07,084 INFO L225 Difference]: With dead ends: 236 [2022-10-16 16:56:07,084 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 16:56:07,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:07,085 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 6 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:07,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 979 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:07,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 16:56:07,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-10-16 16:56:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 154 states have (on average 1.5) internal successors, (231), 168 states have internal predecessors, (231), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 348 transitions. [2022-10-16 16:56:07,104 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 348 transitions. Word has length 20 [2022-10-16 16:56:07,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:07,104 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 348 transitions. [2022-10-16 16:56:07,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-10-16 16:56:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 348 transitions. [2022-10-16 16:56:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 16:56:07,106 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:07,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:07,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 16:56:07,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:07,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:07,107 INFO L85 PathProgramCache]: Analyzing trace with hash 998287488, now seen corresponding path program 1 times [2022-10-16 16:56:07,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:07,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591316012] [2022-10-16 16:56:07,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:07,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:56:07,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:07,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591316012] [2022-10-16 16:56:07,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591316012] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:07,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580932224] [2022-10-16 16:56:07,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:07,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:07,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:07,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:07,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 16:56:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:07,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:56:07,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:56:07,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:07,582 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:56:07,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580932224] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:07,582 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:07,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 16:56:07,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708969747] [2022-10-16 16:56:07,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:07,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 16:56:07,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:07,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 16:56:07,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:56:07,585 INFO L87 Difference]: Start difference. First operand 234 states and 348 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2022-10-16 16:56:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:07,735 INFO L93 Difference]: Finished difference Result 472 states and 703 transitions. [2022-10-16 16:56:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 16:56:07,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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 24 [2022-10-16 16:56:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:07,738 INFO L225 Difference]: With dead ends: 472 [2022-10-16 16:56:07,739 INFO L226 Difference]: Without dead ends: 240 [2022-10-16 16:56:07,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-16 16:56:07,742 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 21 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:07,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1620 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:07,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-10-16 16:56:07,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-10-16 16:56:07,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 159 states have (on average 1.490566037735849) internal successors, (237), 173 states have internal predecessors, (237), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 354 transitions. [2022-10-16 16:56:07,760 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 354 transitions. Word has length 24 [2022-10-16 16:56:07,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:07,760 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 354 transitions. [2022-10-16 16:56:07,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2022-10-16 16:56:07,761 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 354 transitions. [2022-10-16 16:56:07,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 16:56:07,762 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:07,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:07,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:07,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:07,979 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:07,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:07,980 INFO L85 PathProgramCache]: Analyzing trace with hash 882193245, now seen corresponding path program 1 times [2022-10-16 16:56:07,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:07,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558006588] [2022-10-16 16:56:07,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:07,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:56:08,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:08,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558006588] [2022-10-16 16:56:08,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558006588] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761264326] [2022-10-16 16:56:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:08,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:08,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 16:56:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:08,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 16:56:08,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:08,417 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:56:08,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:08,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761264326] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:08,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:08,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 16:56:08,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112073383] [2022-10-16 16:56:08,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:08,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:56:08,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:08,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:56:08,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:56:08,420 INFO L87 Difference]: Start difference. First operand 239 states and 354 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-10-16 16:56:08,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:08,529 INFO L93 Difference]: Finished difference Result 253 states and 375 transitions. [2022-10-16 16:56:08,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 16:56:08,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 25 [2022-10-16 16:56:08,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:08,533 INFO L225 Difference]: With dead ends: 253 [2022-10-16 16:56:08,533 INFO L226 Difference]: Without dead ends: 252 [2022-10-16 16:56:08,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:56:08,535 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 53 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:08,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1013 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:08,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-10-16 16:56:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 238. [2022-10-16 16:56:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 159 states have (on average 1.4779874213836477) internal successors, (235), 172 states have internal predecessors, (235), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 352 transitions. [2022-10-16 16:56:08,551 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 352 transitions. Word has length 25 [2022-10-16 16:56:08,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:08,552 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 352 transitions. [2022-10-16 16:56:08,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2022-10-16 16:56:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 352 transitions. [2022-10-16 16:56:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 16:56:08,553 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:08,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:08,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:08,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:08,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:08,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash 514610878, now seen corresponding path program 1 times [2022-10-16 16:56:08,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:08,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477955698] [2022-10-16 16:56:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:08,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:08,918 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 16:56:08,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:08,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477955698] [2022-10-16 16:56:08,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477955698] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:08,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:08,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:08,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154770637] [2022-10-16 16:56:08,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:08,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:08,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:08,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:08,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:08,921 INFO L87 Difference]: Start difference. First operand 238 states and 352 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-10-16 16:56:08,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:08,977 INFO L93 Difference]: Finished difference Result 238 states and 352 transitions. [2022-10-16 16:56:08,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:08,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 28 [2022-10-16 16:56:08,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:08,980 INFO L225 Difference]: With dead ends: 238 [2022-10-16 16:56:08,981 INFO L226 Difference]: Without dead ends: 237 [2022-10-16 16:56:08,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:08,982 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 6 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:08,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 973 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-10-16 16:56:08,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2022-10-16 16:56:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 159 states have (on average 1.471698113207547) internal successors, (234), 171 states have internal predecessors, (234), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 351 transitions. [2022-10-16 16:56:08,998 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 351 transitions. Word has length 28 [2022-10-16 16:56:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:08,999 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 351 transitions. [2022-10-16 16:56:08,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-10-16 16:56:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 351 transitions. [2022-10-16 16:56:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 16:56:09,000 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:09,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:09,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 16:56:09,001 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:09,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1341801992, now seen corresponding path program 2 times [2022-10-16 16:56:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:09,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821052478] [2022-10-16 16:56:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:09,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 16:56:09,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:09,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821052478] [2022-10-16 16:56:09,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821052478] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:09,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:09,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:09,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480259038] [2022-10-16 16:56:09,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:09,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:09,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:09,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:09,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:09,167 INFO L87 Difference]: Start difference. First operand 237 states and 351 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-10-16 16:56:09,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:09,250 INFO L93 Difference]: Finished difference Result 472 states and 700 transitions. [2022-10-16 16:56:09,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:09,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 32 [2022-10-16 16:56:09,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:09,254 INFO L225 Difference]: With dead ends: 472 [2022-10-16 16:56:09,254 INFO L226 Difference]: Without dead ends: 268 [2022-10-16 16:56:09,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:09,257 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 3 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:09,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 977 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-10-16 16:56:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-10-16 16:56:09,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 190 states have (on average 1.4052631578947368) internal successors, (267), 202 states have internal predecessors, (267), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 384 transitions. [2022-10-16 16:56:09,275 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 384 transitions. Word has length 32 [2022-10-16 16:56:09,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:09,276 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 384 transitions. [2022-10-16 16:56:09,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-10-16 16:56:09,276 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 384 transitions. [2022-10-16 16:56:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 16:56:09,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:09,279 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:56:09,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 16:56:09,279 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:09,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:09,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1904168389, now seen corresponding path program 1 times [2022-10-16 16:56:09,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:09,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576143998] [2022-10-16 16:56:09,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:09,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:09,514 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 16:56:09,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:09,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576143998] [2022-10-16 16:56:09,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576143998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:09,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:09,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:09,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781903711] [2022-10-16 16:56:09,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:09,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:09,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:09,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:09,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:09,517 INFO L87 Difference]: Start difference. First operand 268 states and 384 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-10-16 16:56:09,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:09,573 INFO L93 Difference]: Finished difference Result 268 states and 384 transitions. [2022-10-16 16:56:09,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:09,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 63 [2022-10-16 16:56:09,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:09,577 INFO L225 Difference]: With dead ends: 268 [2022-10-16 16:56:09,577 INFO L226 Difference]: Without dead ends: 267 [2022-10-16 16:56:09,578 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 [2022-10-16 16:56:09,579 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 5 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:09,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 963 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-10-16 16:56:09,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-10-16 16:56:09,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 190 states have (on average 1.4) internal successors, (266), 201 states have internal predecessors, (266), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:09,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 383 transitions. [2022-10-16 16:56:09,596 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 383 transitions. Word has length 63 [2022-10-16 16:56:09,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:09,597 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 383 transitions. [2022-10-16 16:56:09,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-10-16 16:56:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 383 transitions. [2022-10-16 16:56:09,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 16:56:09,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:09,599 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 16:56:09,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 16:56:09,599 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1100321534, now seen corresponding path program 1 times [2022-10-16 16:56:09,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:09,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617173300] [2022-10-16 16:56:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:09,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 88 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 16:56:10,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:10,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617173300] [2022-10-16 16:56:10,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617173300] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:10,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334372098] [2022-10-16 16:56:10,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:10,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:10,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:10,081 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:10,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 16:56:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:10,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 16:56:10,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:10,490 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 88 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 16:56:10,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:10,591 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 88 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 16:56:10,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334372098] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:10,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:10,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2022-10-16 16:56:10,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648191230] [2022-10-16 16:56:10,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:10,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 16:56:10,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:10,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 16:56:10,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:56:10,594 INFO L87 Difference]: Start difference. First operand 267 states and 383 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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) [2022-10-16 16:56:10,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:10,772 INFO L93 Difference]: Finished difference Result 520 states and 754 transitions. [2022-10-16 16:56:10,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 16:56:10,773 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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 64 [2022-10-16 16:56:10,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:10,775 INFO L225 Difference]: With dead ends: 520 [2022-10-16 16:56:10,776 INFO L226 Difference]: Without dead ends: 283 [2022-10-16 16:56:10,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 119 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-10-16 16:56:10,779 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 20 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:10,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2574 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-10-16 16:56:10,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-10-16 16:56:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 206 states have (on average 1.3689320388349515) internal successors, (282), 217 states have internal predecessors, (282), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 399 transitions. [2022-10-16 16:56:10,796 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 399 transitions. Word has length 64 [2022-10-16 16:56:10,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:10,796 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 399 transitions. [2022-10-16 16:56:10,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 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) [2022-10-16 16:56:10,796 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 399 transitions. [2022-10-16 16:56:10,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 16:56:10,798 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:10,798 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 16:56:10,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:11,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 16:56:11,013 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:11,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:11,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2006499070, now seen corresponding path program 2 times [2022-10-16 16:56:11,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:11,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017186361] [2022-10-16 16:56:11,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:11,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 159 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-10-16 16:56:11,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:11,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017186361] [2022-10-16 16:56:11,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017186361] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:11,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113244599] [2022-10-16 16:56:11,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 16:56:11,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:11,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:11,359 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:11,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 16:56:11,745 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 16:56:11,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 16:56:11,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:56:11,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-10-16 16:56:11,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:11,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113244599] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:11,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:11,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 16:56:11,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067819725] [2022-10-16 16:56:11,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:11,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:11,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:11,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:11,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:56:11,859 INFO L87 Difference]: Start difference. First operand 283 states and 399 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2022-10-16 16:56:11,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:11,916 INFO L93 Difference]: Finished difference Result 283 states and 399 transitions. [2022-10-16 16:56:11,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:11,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 80 [2022-10-16 16:56:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:11,920 INFO L225 Difference]: With dead ends: 283 [2022-10-16 16:56:11,920 INFO L226 Difference]: Without dead ends: 282 [2022-10-16 16:56:11,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:56:11,921 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 17 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:11,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 945 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:11,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-16 16:56:11,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 244. [2022-10-16 16:56:11,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 168 states have (on average 1.4345238095238095) internal successors, (241), 178 states have internal predecessors, (241), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 358 transitions. [2022-10-16 16:56:11,938 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 358 transitions. Word has length 80 [2022-10-16 16:56:11,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:11,939 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 358 transitions. [2022-10-16 16:56:11,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2022-10-16 16:56:11,939 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 358 transitions. [2022-10-16 16:56:11,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-16 16:56:11,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:11,942 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:11,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:12,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:12,156 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:12,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:12,157 INFO L85 PathProgramCache]: Analyzing trace with hash 204187276, now seen corresponding path program 1 times [2022-10-16 16:56:12,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:12,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250388200] [2022-10-16 16:56:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:12,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 16:56:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 16:56:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 16:56:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 16:56:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 16:56:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 16:56:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 16:56:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:28,222 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-16 16:56:28,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:28,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250388200] [2022-10-16 16:56:28,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250388200] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:28,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241090173] [2022-10-16 16:56:28,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:28,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:28,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:28,224 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:28,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 16:56:33,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:34,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 17219 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:56:34,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-16 16:56:34,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-10-16 16:56:34,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241090173] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:34,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:34,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 10 [2022-10-16 16:56:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721083365] [2022-10-16 16:56:34,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:34,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 16:56:34,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 16:56:34,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:56:34,317 INFO L87 Difference]: Start difference. First operand 244 states and 358 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 16:56:36,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:56:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:38,116 INFO L93 Difference]: Finished difference Result 491 states and 722 transitions. [2022-10-16 16:56:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 16:56:38,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2022-10-16 16:56:38,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:38,121 INFO L225 Difference]: With dead ends: 491 [2022-10-16 16:56:38,121 INFO L226 Difference]: Without dead ends: 289 [2022-10-16 16:56:38,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 317 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 16:56:38,124 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 117 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 191 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:38,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1660 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-10-16 16:56:38,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-10-16 16:56:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 283. [2022-10-16 16:56:38,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 207 states have (on average 1.3623188405797102) internal successors, (282), 217 states have internal predecessors, (282), 59 states have call successors, (59), 9 states have call predecessors, (59), 9 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-10-16 16:56:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 399 transitions. [2022-10-16 16:56:38,147 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 399 transitions. Word has length 150 [2022-10-16 16:56:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:38,147 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 399 transitions. [2022-10-16 16:56:38,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 7 states have internal predecessors, (95), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 16:56:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 399 transitions. [2022-10-16 16:56:38,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-10-16 16:56:38,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:38,151 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-10-16 16:56:38,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-16 16:56:38,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:38,365 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1836318538, now seen corresponding path program 1 times [2022-10-16 16:56:38,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:38,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114223152] [2022-10-16 16:56:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:38,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 16:57:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 16:57:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 16:57:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 16:57:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-10-16 16:57:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-16 16:57:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 16:57:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:14,377 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-10-16 16:57:14,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:57:14,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114223152] [2022-10-16 16:57:14,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114223152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:57:14,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:57:14,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 16:57:14,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174802813] [2022-10-16 16:57:14,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:57:14,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 16:57:14,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:57:14,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 16:57:14,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 16:57:14,380 INFO L87 Difference]: Start difference. First operand 283 states and 399 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 16:57:16,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:57:17,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:57:17,803 INFO L93 Difference]: Finished difference Result 751 states and 1137 transitions. [2022-10-16 16:57:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 16:57:17,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 187 [2022-10-16 16:57:17,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:57:17,815 INFO L225 Difference]: With dead ends: 751 [2022-10-16 16:57:17,815 INFO L226 Difference]: Without dead ends: 557 [2022-10-16 16:57:17,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:57:17,818 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 507 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 317 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-16 16:57:17,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1589 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 775 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-10-16 16:57:17,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-10-16 16:57:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 533. [2022-10-16 16:57:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 367 states have (on average 1.457765667574932) internal successors, (535), 380 states have internal predecessors, (535), 139 states have call successors, (139), 19 states have call predecessors, (139), 19 states have return successors, (140), 138 states have call predecessors, (140), 137 states have call successors, (140) [2022-10-16 16:57:17,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 814 transitions. [2022-10-16 16:57:17,873 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 814 transitions. Word has length 187 [2022-10-16 16:57:17,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:57:17,874 INFO L495 AbstractCegarLoop]: Abstraction has 533 states and 814 transitions. [2022-10-16 16:57:17,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 16:57:17,874 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 814 transitions. [2022-10-16 16:57:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-10-16 16:57:17,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:57:17,879 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-10-16 16:57:17,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 16:57:17,881 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:57:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:57:17,882 INFO L85 PathProgramCache]: Analyzing trace with hash 44750881, now seen corresponding path program 2 times [2022-10-16 16:57:17,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:57:17,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626980857] [2022-10-16 16:57:17,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:57:17,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:57:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 16:57:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 16:57:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 16:57:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 16:57:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 16:57:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 16:57:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 16:57:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:57:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:57:45,193 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-10-16 16:57:45,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:57:45,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626980857] [2022-10-16 16:57:45,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626980857] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:57:45,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:57:45,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 16:57:45,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350724129] [2022-10-16 16:57:45,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:57:45,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 16:57:45,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:57:45,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 16:57:45,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 16:57:45,196 INFO L87 Difference]: Start difference. First operand 533 states and 814 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 16:57:47,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:57:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:57:48,585 INFO L93 Difference]: Finished difference Result 791 states and 1194 transitions. [2022-10-16 16:57:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 16:57:48,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 189 [2022-10-16 16:57:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:57:48,592 INFO L225 Difference]: With dead ends: 791 [2022-10-16 16:57:48,592 INFO L226 Difference]: Without dead ends: 610 [2022-10-16 16:57:48,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:57:48,595 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 503 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 310 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 1610 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-16 16:57:48,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 1610 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-10-16 16:57:48,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-10-16 16:57:48,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 586. [2022-10-16 16:57:48,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 399 states have (on average 1.4586466165413534) internal successors, (582), 412 states have internal predecessors, (582), 160 states have call successors, (160), 20 states have call predecessors, (160), 19 states have return successors, (161), 159 states have call predecessors, (161), 158 states have call successors, (161) [2022-10-16 16:57:48,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 903 transitions. [2022-10-16 16:57:48,646 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 903 transitions. Word has length 189 [2022-10-16 16:57:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:57:48,647 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 903 transitions. [2022-10-16 16:57:48,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 16:57:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 903 transitions. [2022-10-16 16:57:48,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-16 16:57:48,651 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:57:48,651 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-10-16 16:57:48,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 16:57:48,651 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:57:48,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:57:48,652 INFO L85 PathProgramCache]: Analyzing trace with hash 971183083, now seen corresponding path program 1 times [2022-10-16 16:57:48,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:57:48,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051517006] [2022-10-16 16:57:48,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:57:48,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:57:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 16:58:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 16:58:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 16:58:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 16:58:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 16:58:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 16:58:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 16:58:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-10-16 16:58:10,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:58:10,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051517006] [2022-10-16 16:58:10,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051517006] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:58:10,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:58:10,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 16:58:10,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496035549] [2022-10-16 16:58:10,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:58:10,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 16:58:10,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:58:10,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 16:58:10,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 16:58:10,770 INFO L87 Difference]: Start difference. First operand 586 states and 903 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 16:58:12,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:58:14,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:58:16,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:58:16,039 INFO L93 Difference]: Finished difference Result 778 states and 1174 transitions. [2022-10-16 16:58:16,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 16:58:16,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 185 [2022-10-16 16:58:16,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:58:16,046 INFO L225 Difference]: With dead ends: 778 [2022-10-16 16:58:16,047 INFO L226 Difference]: Without dead ends: 558 [2022-10-16 16:58:16,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-10-16 16:58:16,050 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 473 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 398 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:58:16,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1305 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 617 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-10-16 16:58:16,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-10-16 16:58:16,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 538. [2022-10-16 16:58:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 370 states have (on average 1.427027027027027) internal successors, (528), 383 states have internal predecessors, (528), 140 states have call successors, (140), 20 states have call predecessors, (140), 20 states have return successors, (142), 139 states have call predecessors, (142), 138 states have call successors, (142) [2022-10-16 16:58:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 810 transitions. [2022-10-16 16:58:16,152 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 810 transitions. Word has length 185 [2022-10-16 16:58:16,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:58:16,154 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 810 transitions. [2022-10-16 16:58:16,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 16:58:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 810 transitions. [2022-10-16 16:58:16,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-10-16 16:58:16,160 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:58:16,160 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 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] [2022-10-16 16:58:16,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 16:58:16,161 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ##fun~$Pointer$~TO~$Pointer$Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:58:16,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:58:16,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1945949659, now seen corresponding path program 1 times [2022-10-16 16:58:16,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:58:16,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863497942] [2022-10-16 16:58:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:58:16,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:58:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 16:58:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 16:58:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 16:58:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-10-16 16:58:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 16:58:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-10-16 16:58:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 16:58:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-10-16 16:58:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-16 16:58:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-10-16 16:58:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 603 trivial. 0 not checked. [2022-10-16 16:58:33,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:58:33,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863497942] [2022-10-16 16:58:33,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863497942] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:58:33,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:58:33,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 16:58:33,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072922584] [2022-10-16 16:58:33,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:58:33,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 16:58:33,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:58:33,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 16:58:33,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 16:58:33,341 INFO L87 Difference]: Start difference. First operand 538 states and 810 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 16:58:35,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:58:37,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:58:38,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:58:38,080 INFO L93 Difference]: Finished difference Result 1117 states and 1760 transitions. [2022-10-16 16:58:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 16:58:38,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 223 [2022-10-16 16:58:38,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:58:38,089 INFO L225 Difference]: With dead ends: 1117 [2022-10-16 16:58:38,089 INFO L226 Difference]: Without dead ends: 756 [2022-10-16 16:58:38,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:58:38,095 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 128 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 242 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-16 16:58:38,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1211 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2022-10-16 16:58:38,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-10-16 16:58:38,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 730. [2022-10-16 16:58:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 482 states have (on average 1.4730290456431536) internal successors, (710), 499 states have internal predecessors, (710), 220 states have call successors, (220), 20 states have call predecessors, (220), 20 states have return successors, (222), 219 states have call predecessors, (222), 218 states have call successors, (222) [2022-10-16 16:58:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1152 transitions. [2022-10-16 16:58:38,166 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1152 transitions. Word has length 223 [2022-10-16 16:58:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:58:38,166 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 1152 transitions. [2022-10-16 16:58:38,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 16:58:38,167 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1152 transitions. [2022-10-16 16:58:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-10-16 16:58:38,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:58:38,173 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 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] [2022-10-16 16:58:38,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 16:58:38,174 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:58:38,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:58:38,174 INFO L85 PathProgramCache]: Analyzing trace with hash 97041004, now seen corresponding path program 1 times [2022-10-16 16:58:38,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:58:38,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10073768] [2022-10-16 16:58:38,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:58:38,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms