/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:38:18,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:38:18,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:38:18,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:38:18,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:38:18,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:38:18,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:38:18,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:38:18,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:38:18,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:38:18,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:38:18,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:38:18,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:38:18,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:38:18,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:38:18,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:38:18,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:38:18,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:38:18,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:38:18,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:38:18,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:38:18,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:38:18,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:38:18,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:38:18,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:38:18,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:38:18,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:38:18,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:38:18,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:38:18,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:38:18,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:38:18,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:38:18,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:38:18,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:38:18,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:38:18,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:38:18,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:38:18,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:38:18,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:38:18,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:38:18,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:38:18,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:38:18,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:38:18,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:38:18,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:38:18,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:38:18,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:38:18,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:38:18,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:38:18,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:38:18,849 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:38:18,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:38:18,850 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:38:18,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:38:18,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:38:18,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:38:18,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:38:18,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:38:18,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:38:18,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:38:18,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:38:18,852 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:38:18,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:38:18,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:38:18,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:38:18,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:38:18,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:38:18,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:38:18,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:38:18,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:38:18,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:38:18,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:38:18,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:38:18,854 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:38:18,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:38:18,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:38:19,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:38:19,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:38:19,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:38:19,087 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:38:19,087 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:38:19,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-09-16 10:38:19,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc95608bc/7541e5e780a84ed497f5f24816e5687c/FLAGf4a52b073 [2022-09-16 10:38:19,608 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:38:19,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-09-16 10:38:19,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc95608bc/7541e5e780a84ed497f5f24816e5687c/FLAGf4a52b073 [2022-09-16 10:38:19,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc95608bc/7541e5e780a84ed497f5f24816e5687c [2022-09-16 10:38:19,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:38:19,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:38:19,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:38:19,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:38:19,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:38:19,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:38:19" (1/1) ... [2022-09-16 10:38:19,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4902e219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:19, skipping insertion in model container [2022-09-16 10:38:19,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:38:19" (1/1) ... [2022-09-16 10:38:19,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:38:19,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:38:20,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-09-16 10:38:20,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:38:20,437 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:38:20,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-09-16 10:38:20,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:38:20,570 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:38:20,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20 WrapperNode [2022-09-16 10:38:20,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:38:20,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:38:20,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:38:20,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:38:20,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,632 INFO L138 Inliner]: procedures = 364, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-09-16 10:38:20,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:38:20,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:38:20,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:38:20,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:38:20,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:38:20,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:38:20,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:38:20,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:38:20,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (1/1) ... [2022-09-16 10:38:20,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:38:20,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:20,710 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) [2022-09-16 10:38:20,721 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 [2022-09-16 10:38:20,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:38:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:38:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:38:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:38:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 10:38:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:38:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2022-09-16 10:38:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2022-09-16 10:38:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:38:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:38:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:38:20,747 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:38:20,868 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:38:20,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:38:21,033 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:38:21,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:38:21,042 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-16 10:38:21,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:38:21 BoogieIcfgContainer [2022-09-16 10:38:21,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:38:21,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:38:21,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:38:21,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:38:21,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:38:19" (1/3) ... [2022-09-16 10:38:21,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d828f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:38:21, skipping insertion in model container [2022-09-16 10:38:21,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:38:20" (2/3) ... [2022-09-16 10:38:21,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d828f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:38:21, skipping insertion in model container [2022-09-16 10:38:21,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:38:21" (3/3) ... [2022-09-16 10:38:21,052 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2022-09-16 10:38:21,058 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:38:21,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:38:21,066 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 10:38:21,067 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:38:21,123 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-16 10:38:21,156 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 112 transitions, 232 flow [2022-09-16 10:38:21,223 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 680 states, 656 states have (on average 2.1280487804878048) internal successors, (1396), 679 states have internal predecessors, (1396), 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) [2022-09-16 10:38:21,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:38:21,244 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;@39135164, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:38:21,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-09-16 10:38:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 680 states, 656 states have (on average 2.1280487804878048) internal successors, (1396), 679 states have internal predecessors, (1396), 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) [2022-09-16 10:38:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 10:38:21,256 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:21,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:21,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:21,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:21,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1558629991, now seen corresponding path program 1 times [2022-09-16 10:38:21,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:21,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980090331] [2022-09-16 10:38:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:21,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:21,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:21,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980090331] [2022-09-16 10:38:21,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980090331] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:21,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:21,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 10:38:21,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494844209] [2022-09-16 10:38:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:21,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:21,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:21,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:21,600 INFO L87 Difference]: Start difference. First operand has 680 states, 656 states have (on average 2.1280487804878048) internal successors, (1396), 679 states have internal predecessors, (1396), 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) Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-09-16 10:38:21,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:21,684 INFO L93 Difference]: Finished difference Result 916 states and 1796 transitions. [2022-09-16 10:38:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:21,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2022-09-16 10:38:21,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:21,708 INFO L225 Difference]: With dead ends: 916 [2022-09-16 10:38:21,709 INFO L226 Difference]: Without dead ends: 898 [2022-09-16 10:38:21,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:21,715 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 41 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:21,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 139 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:21,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-09-16 10:38:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 817. [2022-09-16 10:38:21,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 789 states have (on average 2.05830164765526) internal successors, (1624), 816 states have internal predecessors, (1624), 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) [2022-09-16 10:38:21,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1624 transitions. [2022-09-16 10:38:21,795 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1624 transitions. Word has length 44 [2022-09-16 10:38:21,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:21,796 INFO L495 AbstractCegarLoop]: Abstraction has 817 states and 1624 transitions. [2022-09-16 10:38:21,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-09-16 10:38:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1624 transitions. [2022-09-16 10:38:21,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 10:38:21,798 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:21,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:21,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:38:21,798 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:21,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:21,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2071317093, now seen corresponding path program 1 times [2022-09-16 10:38:21,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:21,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106418741] [2022-09-16 10:38:21,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:21,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:21,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:21,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:21,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106418741] [2022-09-16 10:38:21,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106418741] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:21,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:21,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:38:21,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109863004] [2022-09-16 10:38:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:21,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:38:21,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:21,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:38:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:38:21,889 INFO L87 Difference]: Start difference. First operand 817 states and 1624 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-09-16 10:38:21,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:21,967 INFO L93 Difference]: Finished difference Result 922 states and 1808 transitions. [2022-09-16 10:38:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:38:21,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2022-09-16 10:38:21,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:21,971 INFO L225 Difference]: With dead ends: 922 [2022-09-16 10:38:21,972 INFO L226 Difference]: Without dead ends: 922 [2022-09-16 10:38:21,972 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 [2022-09-16 10:38:21,973 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 74 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:21,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 243 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:38:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-09-16 10:38:21,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 877. [2022-09-16 10:38:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 849 states have (on average 2.034157832744405) internal successors, (1727), 876 states have internal predecessors, (1727), 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) [2022-09-16 10:38:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1727 transitions. [2022-09-16 10:38:21,998 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1727 transitions. Word has length 45 [2022-09-16 10:38:21,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:21,999 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1727 transitions. [2022-09-16 10:38:21,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 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) [2022-09-16 10:38:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1727 transitions. [2022-09-16 10:38:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-09-16 10:38:22,002 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:22,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:22,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 10:38:22,002 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:22,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:22,003 INFO L85 PathProgramCache]: Analyzing trace with hash 110309074, now seen corresponding path program 1 times [2022-09-16 10:38:22,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:22,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639215650] [2022-09-16 10:38:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:22,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:22,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:22,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639215650] [2022-09-16 10:38:22,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639215650] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:22,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:22,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:38:22,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587721237] [2022-09-16 10:38:22,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:22,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:38:22,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:22,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:38:22,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:38:22,090 INFO L87 Difference]: Start difference. First operand 877 states and 1727 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 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) [2022-09-16 10:38:22,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:22,145 INFO L93 Difference]: Finished difference Result 1207 states and 2382 transitions. [2022-09-16 10:38:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:38:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 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 49 [2022-09-16 10:38:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:22,152 INFO L225 Difference]: With dead ends: 1207 [2022-09-16 10:38:22,152 INFO L226 Difference]: Without dead ends: 1207 [2022-09-16 10:38:22,155 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 [2022-09-16 10:38:22,158 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 85 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:22,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 339 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2022-09-16 10:38:22,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1107. [2022-09-16 10:38:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1079 states have (on average 2.0630213160333644) internal successors, (2226), 1106 states have internal predecessors, (2226), 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) [2022-09-16 10:38:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 2226 transitions. [2022-09-16 10:38:22,193 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 2226 transitions. Word has length 49 [2022-09-16 10:38:22,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:22,195 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 2226 transitions. [2022-09-16 10:38:22,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 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) [2022-09-16 10:38:22,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 2226 transitions. [2022-09-16 10:38:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-09-16 10:38:22,202 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:22,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:22,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 10:38:22,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:22,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:22,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1754168660, now seen corresponding path program 1 times [2022-09-16 10:38:22,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:22,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125639776] [2022-09-16 10:38:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:22,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:22,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:22,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125639776] [2022-09-16 10:38:22,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125639776] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:22,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:22,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:38:22,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75776462] [2022-09-16 10:38:22,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:22,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:38:22,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:22,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:38:22,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:38:22,277 INFO L87 Difference]: Start difference. First operand 1107 states and 2226 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-09-16 10:38:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:22,328 INFO L93 Difference]: Finished difference Result 1544 states and 3108 transitions. [2022-09-16 10:38:22,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:38:22,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2022-09-16 10:38:22,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:22,335 INFO L225 Difference]: With dead ends: 1544 [2022-09-16 10:38:22,335 INFO L226 Difference]: Without dead ends: 1544 [2022-09-16 10:38:22,336 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 [2022-09-16 10:38:22,342 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 82 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:22,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 339 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:22,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-09-16 10:38:22,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1430. [2022-09-16 10:38:22,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1402 states have (on average 2.0827389443651927) internal successors, (2920), 1429 states have internal predecessors, (2920), 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) [2022-09-16 10:38:22,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2920 transitions. [2022-09-16 10:38:22,379 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2920 transitions. Word has length 52 [2022-09-16 10:38:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:22,379 INFO L495 AbstractCegarLoop]: Abstraction has 1430 states and 2920 transitions. [2022-09-16 10:38:22,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-09-16 10:38:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2920 transitions. [2022-09-16 10:38:22,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-09-16 10:38:22,380 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:22,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:22,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 10:38:22,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash 835342791, now seen corresponding path program 1 times [2022-09-16 10:38:22,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:22,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511315565] [2022-09-16 10:38:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:22,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:22,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:22,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:22,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511315565] [2022-09-16 10:38:22,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511315565] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:22,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:22,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:38:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766377269] [2022-09-16 10:38:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:22,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 10:38:22,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:22,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 10:38:22,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:22,456 INFO L87 Difference]: Start difference. First operand 1430 states and 2920 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-09-16 10:38:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:22,477 INFO L93 Difference]: Finished difference Result 1170 states and 2302 transitions. [2022-09-16 10:38:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 10:38:22,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2022-09-16 10:38:22,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:22,483 INFO L225 Difference]: With dead ends: 1170 [2022-09-16 10:38:22,483 INFO L226 Difference]: Without dead ends: 1170 [2022-09-16 10:38:22,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 10:38:22,484 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 42 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:22,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 177 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-09-16 10:38:22,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1166. [2022-09-16 10:38:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1138 states have (on average 2.022847100175747) internal successors, (2302), 1165 states have internal predecessors, (2302), 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) [2022-09-16 10:38:22,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 2302 transitions. [2022-09-16 10:38:22,527 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 2302 transitions. Word has length 55 [2022-09-16 10:38:22,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:22,532 INFO L495 AbstractCegarLoop]: Abstraction has 1166 states and 2302 transitions. [2022-09-16 10:38:22,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2022-09-16 10:38:22,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 2302 transitions. [2022-09-16 10:38:22,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-09-16 10:38:22,533 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:22,534 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:22,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 10:38:22,534 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:22,536 INFO L85 PathProgramCache]: Analyzing trace with hash -224334241, now seen corresponding path program 1 times [2022-09-16 10:38:22,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:22,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544405535] [2022-09-16 10:38:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:22,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:22,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:22,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:22,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544405535] [2022-09-16 10:38:22,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544405535] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:22,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:22,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:38:22,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130090719] [2022-09-16 10:38:22,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:22,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:38:22,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:22,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:38:22,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:38:22,614 INFO L87 Difference]: Start difference. First operand 1166 states and 2302 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-09-16 10:38:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:22,665 INFO L93 Difference]: Finished difference Result 1277 states and 2512 transitions. [2022-09-16 10:38:22,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:38:22,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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 56 [2022-09-16 10:38:22,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:22,671 INFO L225 Difference]: With dead ends: 1277 [2022-09-16 10:38:22,671 INFO L226 Difference]: Without dead ends: 1277 [2022-09-16 10:38:22,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-09-16 10:38:22,673 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 139 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:22,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 299 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:22,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-09-16 10:38:22,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1232. [2022-09-16 10:38:22,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1204 states have (on average 2.014950166112957) internal successors, (2426), 1231 states have internal predecessors, (2426), 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) [2022-09-16 10:38:22,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 2426 transitions. [2022-09-16 10:38:22,699 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 2426 transitions. Word has length 56 [2022-09-16 10:38:22,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:22,700 INFO L495 AbstractCegarLoop]: Abstraction has 1232 states and 2426 transitions. [2022-09-16 10:38:22,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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) [2022-09-16 10:38:22,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 2426 transitions. [2022-09-16 10:38:22,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:38:22,702 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:22,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:22,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 10:38:22,702 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:22,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:22,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1635573422, now seen corresponding path program 1 times [2022-09-16 10:38:22,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:22,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810686594] [2022-09-16 10:38:22,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:22,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:22,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:22,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:22,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810686594] [2022-09-16 10:38:22,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810686594] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:22,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:22,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 10:38:22,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630412615] [2022-09-16 10:38:22,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:22,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:38:22,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:22,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:38:22,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:38:22,771 INFO L87 Difference]: Start difference. First operand 1232 states and 2426 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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) [2022-09-16 10:38:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:22,829 INFO L93 Difference]: Finished difference Result 1647 states and 3226 transitions. [2022-09-16 10:38:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:38:22,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 57 [2022-09-16 10:38:22,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:22,835 INFO L225 Difference]: With dead ends: 1647 [2022-09-16 10:38:22,835 INFO L226 Difference]: Without dead ends: 1647 [2022-09-16 10:38:22,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:38:22,837 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 111 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:22,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 423 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:22,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-09-16 10:38:22,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1604. [2022-09-16 10:38:22,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1576 states have (on average 2.026015228426396) internal successors, (3193), 1603 states have internal predecessors, (3193), 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) [2022-09-16 10:38:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3193 transitions. [2022-09-16 10:38:22,871 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3193 transitions. Word has length 57 [2022-09-16 10:38:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:22,872 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 3193 transitions. [2022-09-16 10:38:22,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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) [2022-09-16 10:38:22,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3193 transitions. [2022-09-16 10:38:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 10:38:22,873 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:22,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:22,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 10:38:22,873 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1266117126, now seen corresponding path program 1 times [2022-09-16 10:38:22,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:22,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977598800] [2022-09-16 10:38:22,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:22,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:22,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:22,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977598800] [2022-09-16 10:38:22,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977598800] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:22,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:22,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:38:22,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086078919] [2022-09-16 10:38:22,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:22,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:38:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:38:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:38:22,944 INFO L87 Difference]: Start difference. First operand 1604 states and 3193 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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) [2022-09-16 10:38:23,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:23,024 INFO L93 Difference]: Finished difference Result 1973 states and 3904 transitions. [2022-09-16 10:38:23,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-16 10:38:23,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2022-09-16 10:38:23,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:23,031 INFO L225 Difference]: With dead ends: 1973 [2022-09-16 10:38:23,031 INFO L226 Difference]: Without dead ends: 1973 [2022-09-16 10:38:23,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:38:23,034 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 219 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:23,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 417 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:23,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2022-09-16 10:38:23,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 1699. [2022-09-16 10:38:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1671 states have (on average 2.0197486535008977) internal successors, (3375), 1698 states have internal predecessors, (3375), 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) [2022-09-16 10:38:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 3375 transitions. [2022-09-16 10:38:23,074 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 3375 transitions. Word has length 58 [2022-09-16 10:38:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:23,074 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 3375 transitions. [2022-09-16 10:38:23,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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) [2022-09-16 10:38:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 3375 transitions. [2022-09-16 10:38:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-09-16 10:38:23,076 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:23,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:23,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 10:38:23,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:23,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:23,077 INFO L85 PathProgramCache]: Analyzing trace with hash 594925483, now seen corresponding path program 1 times [2022-09-16 10:38:23,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:23,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408883222] [2022-09-16 10:38:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:23,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:23,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:23,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:23,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408883222] [2022-09-16 10:38:23,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408883222] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:23,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:23,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:38:23,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21040152] [2022-09-16 10:38:23,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:23,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:38:23,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:23,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:38:23,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:38:23,138 INFO L87 Difference]: Start difference. First operand 1699 states and 3375 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-09-16 10:38:23,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:23,217 INFO L93 Difference]: Finished difference Result 1663 states and 3287 transitions. [2022-09-16 10:38:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:38:23,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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 59 [2022-09-16 10:38:23,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:23,225 INFO L225 Difference]: With dead ends: 1663 [2022-09-16 10:38:23,225 INFO L226 Difference]: Without dead ends: 1663 [2022-09-16 10:38:23,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:38:23,227 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 126 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:23,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 451 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2022-09-16 10:38:23,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1285. [2022-09-16 10:38:23,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1266 states have (on average 1.970774091627172) internal successors, (2495), 1284 states have internal predecessors, (2495), 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) [2022-09-16 10:38:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 2495 transitions. [2022-09-16 10:38:23,256 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 2495 transitions. Word has length 59 [2022-09-16 10:38:23,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:23,256 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 2495 transitions. [2022-09-16 10:38:23,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 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) [2022-09-16 10:38:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 2495 transitions. [2022-09-16 10:38:23,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-09-16 10:38:23,257 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:23,257 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:23,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 10:38:23,258 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:23,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1925655563, now seen corresponding path program 1 times [2022-09-16 10:38:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:23,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885165209] [2022-09-16 10:38:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:23,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:38:23,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:23,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885165209] [2022-09-16 10:38:23,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885165209] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:23,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:23,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:38:23,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128889040] [2022-09-16 10:38:23,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:23,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:38:23,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:23,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:38:23,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:38:23,295 INFO L87 Difference]: Start difference. First operand 1285 states and 2495 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-09-16 10:38:23,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:23,320 INFO L93 Difference]: Finished difference Result 1247 states and 2418 transitions. [2022-09-16 10:38:23,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:38:23,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2022-09-16 10:38:23,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:23,325 INFO L225 Difference]: With dead ends: 1247 [2022-09-16 10:38:23,325 INFO L226 Difference]: Without dead ends: 1247 [2022-09-16 10:38:23,325 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 [2022-09-16 10:38:23,327 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 83 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:23,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 315 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2022-09-16 10:38:23,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1247. [2022-09-16 10:38:23,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1232 states have (on average 1.9626623376623376) internal successors, (2418), 1246 states have internal predecessors, (2418), 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) [2022-09-16 10:38:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 2418 transitions. [2022-09-16 10:38:23,369 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 2418 transitions. Word has length 61 [2022-09-16 10:38:23,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:23,369 INFO L495 AbstractCegarLoop]: Abstraction has 1247 states and 2418 transitions. [2022-09-16 10:38:23,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-09-16 10:38:23,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 2418 transitions. [2022-09-16 10:38:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-09-16 10:38:23,371 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:23,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:23,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 10:38:23,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:23,371 INFO L85 PathProgramCache]: Analyzing trace with hash -434219504, now seen corresponding path program 1 times [2022-09-16 10:38:23,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:23,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72653337] [2022-09-16 10:38:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:23,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:23,415 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:23,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:23,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72653337] [2022-09-16 10:38:23,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72653337] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:23,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063719376] [2022-09-16 10:38:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:23,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:23,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:23,423 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) [2022-09-16 10:38:23,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:38:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:23,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:38:23,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:23,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:38:23,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063719376] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:23,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:38:23,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 10:38:23,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545413731] [2022-09-16 10:38:23,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:23,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:38:23,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:23,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:38:23,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 10:38:23,592 INFO L87 Difference]: Start difference. First operand 1247 states and 2418 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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) [2022-09-16 10:38:23,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:23,644 INFO L93 Difference]: Finished difference Result 1280 states and 2468 transitions. [2022-09-16 10:38:23,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 10:38:23,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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 62 [2022-09-16 10:38:23,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:23,650 INFO L225 Difference]: With dead ends: 1280 [2022-09-16 10:38:23,650 INFO L226 Difference]: Without dead ends: 1280 [2022-09-16 10:38:23,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:38:23,651 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 140 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:23,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 583 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:23,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2022-09-16 10:38:23,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1030. [2022-09-16 10:38:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 1019 states have (on average 1.9470068694798823) internal successors, (1984), 1029 states have internal predecessors, (1984), 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) [2022-09-16 10:38:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1984 transitions. [2022-09-16 10:38:23,673 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1984 transitions. Word has length 62 [2022-09-16 10:38:23,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:23,673 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1984 transitions. [2022-09-16 10:38:23,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 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) [2022-09-16 10:38:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1984 transitions. [2022-09-16 10:38:23,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:38:23,674 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:23,675 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:23,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 10:38:23,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-09-16 10:38:23,899 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:23,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash -708143340, now seen corresponding path program 1 times [2022-09-16 10:38:23,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:23,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610812241] [2022-09-16 10:38:23,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 10:38:23,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:23,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610812241] [2022-09-16 10:38:23,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610812241] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:23,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:38:23,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:38:23,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788905837] [2022-09-16 10:38:23,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:23,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:38:23,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:38:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:38:23,933 INFO L87 Difference]: Start difference. First operand 1030 states and 1984 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-09-16 10:38:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:23,956 INFO L93 Difference]: Finished difference Result 1007 states and 1938 transitions. [2022-09-16 10:38:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:38:23,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2022-09-16 10:38:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:23,960 INFO L225 Difference]: With dead ends: 1007 [2022-09-16 10:38:23,960 INFO L226 Difference]: Without dead ends: 1007 [2022-09-16 10:38:23,960 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 [2022-09-16 10:38:23,960 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 74 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:23,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 299 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2022-09-16 10:38:23,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1007. [2022-09-16 10:38:23,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 999 states have (on average 1.93993993993994) internal successors, (1938), 1006 states have internal predecessors, (1938), 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) [2022-09-16 10:38:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1938 transitions. [2022-09-16 10:38:23,979 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1938 transitions. Word has length 67 [2022-09-16 10:38:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:23,979 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1938 transitions. [2022-09-16 10:38:23,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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) [2022-09-16 10:38:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1938 transitions. [2022-09-16 10:38:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-09-16 10:38:23,981 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:23,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:23,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 10:38:23,981 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:23,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:23,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1063076184, now seen corresponding path program 1 times [2022-09-16 10:38:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:23,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614985880] [2022-09-16 10:38:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:24,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:24,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614985880] [2022-09-16 10:38:24,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614985880] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:24,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543120774] [2022-09-16 10:38:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:24,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:24,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:24,036 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) [2022-09-16 10:38:24,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 10:38:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:24,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:38:24,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:24,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:24,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:24,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543120774] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:24,257 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:24,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-16 10:38:24,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624342640] [2022-09-16 10:38:24,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:24,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-16 10:38:24,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:24,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-16 10:38:24,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-09-16 10:38:24,258 INFO L87 Difference]: Start difference. First operand 1007 states and 1938 transitions. Second operand has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 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) [2022-09-16 10:38:24,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:24,418 INFO L93 Difference]: Finished difference Result 2001 states and 3856 transitions. [2022-09-16 10:38:24,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:38:24,419 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 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 68 [2022-09-16 10:38:24,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:24,426 INFO L225 Difference]: With dead ends: 2001 [2022-09-16 10:38:24,426 INFO L226 Difference]: Without dead ends: 2001 [2022-09-16 10:38:24,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=238, Unknown=0, NotChecked=0, Total=380 [2022-09-16 10:38:24,427 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 461 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:24,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 518 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:38:24,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2022-09-16 10:38:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1466. [2022-09-16 10:38:24,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1458 states have (on average 1.958161865569273) internal successors, (2855), 1465 states have internal predecessors, (2855), 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) [2022-09-16 10:38:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 2855 transitions. [2022-09-16 10:38:24,457 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 2855 transitions. Word has length 68 [2022-09-16 10:38:24,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:24,457 INFO L495 AbstractCegarLoop]: Abstraction has 1466 states and 2855 transitions. [2022-09-16 10:38:24,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 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) [2022-09-16 10:38:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 2855 transitions. [2022-09-16 10:38:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-09-16 10:38:24,459 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:24,459 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:24,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-16 10:38:24,681 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,SelfDestructingSolverStorable12 [2022-09-16 10:38:24,682 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:24,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:24,682 INFO L85 PathProgramCache]: Analyzing trace with hash -477606750, now seen corresponding path program 1 times [2022-09-16 10:38:24,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:24,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142902895] [2022-09-16 10:38:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:24,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:24,730 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:24,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:24,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142902895] [2022-09-16 10:38:24,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142902895] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:24,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998435254] [2022-09-16 10:38:24,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:24,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:24,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:24,732 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) [2022-09-16 10:38:24,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-16 10:38:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:24,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 10:38:24,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:24,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 10:38:24,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998435254] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:38:24,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 10:38:24,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-09-16 10:38:24,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060553549] [2022-09-16 10:38:24,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:38:24,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 10:38:24,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:24,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 10:38:24,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:38:24,855 INFO L87 Difference]: Start difference. First operand 1466 states and 2855 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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) [2022-09-16 10:38:24,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:24,880 INFO L93 Difference]: Finished difference Result 1443 states and 2809 transitions. [2022-09-16 10:38:24,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 10:38:24,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2022-09-16 10:38:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:24,885 INFO L225 Difference]: With dead ends: 1443 [2022-09-16 10:38:24,885 INFO L226 Difference]: Without dead ends: 1443 [2022-09-16 10:38:24,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-09-16 10:38:24,886 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 53 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:24,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 364 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 10:38:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-09-16 10:38:24,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1270. [2022-09-16 10:38:24,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1265 states have (on average 1.9549407114624506) internal successors, (2473), 1269 states have internal predecessors, (2473), 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) [2022-09-16 10:38:24,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 2473 transitions. [2022-09-16 10:38:24,940 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 2473 transitions. Word has length 68 [2022-09-16 10:38:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:24,940 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 2473 transitions. [2022-09-16 10:38:24,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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) [2022-09-16 10:38:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 2473 transitions. [2022-09-16 10:38:24,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-09-16 10:38:24,942 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:24,942 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:24,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-16 10:38:25,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:25,165 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:25,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:25,166 INFO L85 PathProgramCache]: Analyzing trace with hash -352921939, now seen corresponding path program 1 times [2022-09-16 10:38:25,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:25,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277919675] [2022-09-16 10:38:25,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:25,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:25,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:25,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277919675] [2022-09-16 10:38:25,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277919675] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:25,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621081601] [2022-09-16 10:38:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:25,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:25,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:25,227 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) [2022-09-16 10:38:25,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-16 10:38:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:25,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-16 10:38:25,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:25,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:25,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621081601] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:25,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:25,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-09-16 10:38:25,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457361771] [2022-09-16 10:38:25,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:25,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-16 10:38:25,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:25,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-16 10:38:25,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-09-16 10:38:25,454 INFO L87 Difference]: Start difference. First operand 1270 states and 2473 transitions. Second operand has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 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) [2022-09-16 10:38:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:25,733 INFO L93 Difference]: Finished difference Result 3835 states and 7441 transitions. [2022-09-16 10:38:25,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-16 10:38:25,733 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 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 70 [2022-09-16 10:38:25,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:25,746 INFO L225 Difference]: With dead ends: 3835 [2022-09-16 10:38:25,746 INFO L226 Difference]: Without dead ends: 3835 [2022-09-16 10:38:25,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=277, Invalid=593, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:38:25,747 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 876 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:25,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 738 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:38:25,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3835 states. [2022-09-16 10:38:25,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3835 to 2066. [2022-09-16 10:38:25,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 2061 states have (on average 1.960698689956332) internal successors, (4041), 2065 states have internal predecessors, (4041), 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) [2022-09-16 10:38:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 4041 transitions. [2022-09-16 10:38:25,796 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 4041 transitions. Word has length 70 [2022-09-16 10:38:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:25,797 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 4041 transitions. [2022-09-16 10:38:25,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.0) internal successors, (130), 14 states have internal predecessors, (130), 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) [2022-09-16 10:38:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 4041 transitions. [2022-09-16 10:38:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-09-16 10:38:25,800 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:25,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:25,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-16 10:38:26,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-09-16 10:38:26,015 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:26,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:26,016 INFO L85 PathProgramCache]: Analyzing trace with hash 455446803, now seen corresponding path program 1 times [2022-09-16 10:38:26,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:26,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461477763] [2022-09-16 10:38:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:26,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461477763] [2022-09-16 10:38:26,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461477763] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:26,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735634778] [2022-09-16 10:38:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:26,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:26,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:26,097 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) [2022-09-16 10:38:26,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-16 10:38:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:26,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-16 10:38:26,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:26,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:26,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735634778] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:26,389 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:26,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-09-16 10:38:26,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239015796] [2022-09-16 10:38:26,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:26,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 10:38:26,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:26,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 10:38:26,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-09-16 10:38:26,391 INFO L87 Difference]: Start difference. First operand 2066 states and 4041 transitions. Second operand has 19 states, 18 states have (on average 9.944444444444445) internal successors, (179), 19 states have internal predecessors, (179), 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) [2022-09-16 10:38:27,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:27,030 INFO L93 Difference]: Finished difference Result 7928 states and 15454 transitions. [2022-09-16 10:38:27,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-09-16 10:38:27,030 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.944444444444445) internal successors, (179), 19 states have internal predecessors, (179), 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 95 [2022-09-16 10:38:27,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:27,045 INFO L225 Difference]: With dead ends: 7928 [2022-09-16 10:38:27,046 INFO L226 Difference]: Without dead ends: 7928 [2022-09-16 10:38:27,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=946, Invalid=1916, Unknown=0, NotChecked=0, Total=2862 [2022-09-16 10:38:27,047 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 2500 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:27,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 1138 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:38:27,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7928 states. [2022-09-16 10:38:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7928 to 3218. [2022-09-16 10:38:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3213 states have (on average 1.97416744475568) internal successors, (6343), 3217 states have internal predecessors, (6343), 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) [2022-09-16 10:38:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 6343 transitions. [2022-09-16 10:38:27,136 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 6343 transitions. Word has length 95 [2022-09-16 10:38:27,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:27,136 INFO L495 AbstractCegarLoop]: Abstraction has 3218 states and 6343 transitions. [2022-09-16 10:38:27,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.944444444444445) internal successors, (179), 19 states have internal predecessors, (179), 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) [2022-09-16 10:38:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 6343 transitions. [2022-09-16 10:38:27,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-09-16 10:38:27,146 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:27,146 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-09-16 10:38:27,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-16 10:38:27,365 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,SelfDestructingSolverStorable15 [2022-09-16 10:38:27,365 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash 151200141, now seen corresponding path program 1 times [2022-09-16 10:38:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:27,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049926103] [2022-09-16 10:38:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:27,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:27,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:27,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049926103] [2022-09-16 10:38:27,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049926103] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:27,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809238775] [2022-09-16 10:38:27,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:27,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:27,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:27,511 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) [2022-09-16 10:38:27,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-16 10:38:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:27,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 14 conjunts are in the unsatisfiable core [2022-09-16 10:38:27,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:27,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:28,007 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:28,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809238775] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:28,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:28,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2022-09-16 10:38:28,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454901958] [2022-09-16 10:38:28,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:28,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-09-16 10:38:28,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-09-16 10:38:28,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2022-09-16 10:38:28,010 INFO L87 Difference]: Start difference. First operand 3218 states and 6343 transitions. Second operand has 30 states, 29 states have (on average 8.206896551724139) internal successors, (238), 30 states have internal predecessors, (238), 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) [2022-09-16 10:38:30,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:30,722 INFO L93 Difference]: Finished difference Result 23194 states and 45282 transitions. [2022-09-16 10:38:30,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-09-16 10:38:30,722 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 8.206896551724139) internal successors, (238), 30 states have internal predecessors, (238), 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 124 [2022-09-16 10:38:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:30,772 INFO L225 Difference]: With dead ends: 23194 [2022-09-16 10:38:30,772 INFO L226 Difference]: Without dead ends: 23194 [2022-09-16 10:38:30,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5813 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=5071, Invalid=10679, Unknown=0, NotChecked=0, Total=15750 [2022-09-16 10:38:30,777 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 6719 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6719 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:30,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6719 Valid, 1561 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23194 states. [2022-09-16 10:38:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23194 to 5265. [2022-09-16 10:38:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5260 states have (on average 1.9709125475285172) internal successors, (10367), 5264 states have internal predecessors, (10367), 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) [2022-09-16 10:38:31,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 10367 transitions. [2022-09-16 10:38:31,040 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 10367 transitions. Word has length 124 [2022-09-16 10:38:31,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:31,040 INFO L495 AbstractCegarLoop]: Abstraction has 5265 states and 10367 transitions. [2022-09-16 10:38:31,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.206896551724139) internal successors, (238), 30 states have internal predecessors, (238), 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) [2022-09-16 10:38:31,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 10367 transitions. [2022-09-16 10:38:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-09-16 10:38:31,051 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:31,051 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:31,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-16 10:38:31,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-09-16 10:38:31,275 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:31,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:31,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1532430189, now seen corresponding path program 2 times [2022-09-16 10:38:31,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:31,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911739086] [2022-09-16 10:38:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:31,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 0 proven. 615 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:31,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:31,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911739086] [2022-09-16 10:38:31,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911739086] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:31,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292391542] [2022-09-16 10:38:31,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:38:31,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:31,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:31,493 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) [2022-09-16 10:38:31,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-16 10:38:31,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:38:31,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:38:31,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 17 conjunts are in the unsatisfiable core [2022-09-16 10:38:31,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 0 proven. 615 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:31,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 0 proven. 615 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:32,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292391542] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:32,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:32,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-09-16 10:38:32,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424173569] [2022-09-16 10:38:32,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:32,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-09-16 10:38:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:32,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-09-16 10:38:32,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2022-09-16 10:38:32,216 INFO L87 Difference]: Start difference. First operand 5265 states and 10367 transitions. Second operand has 35 states, 34 states have (on average 10.911764705882353) internal successors, (371), 35 states have internal predecessors, (371), 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) [2022-09-16 10:38:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:34,327 INFO L93 Difference]: Finished difference Result 51217 states and 99945 transitions. [2022-09-16 10:38:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-09-16 10:38:34,327 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 10.911764705882353) internal successors, (371), 35 states have internal predecessors, (371), 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 191 [2022-09-16 10:38:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:34,455 INFO L225 Difference]: With dead ends: 51217 [2022-09-16 10:38:34,456 INFO L226 Difference]: Without dead ends: 51217 [2022-09-16 10:38:34,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6034 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=5194, Invalid=10556, Unknown=0, NotChecked=0, Total=15750 [2022-09-16 10:38:34,460 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 4353 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4353 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:34,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4353 Valid, 1992 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:38:34,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51217 states. [2022-09-16 10:38:35,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51217 to 15492. [2022-09-16 10:38:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15492 states, 15487 states have (on average 2.0752243817395235) internal successors, (32139), 15491 states have internal predecessors, (32139), 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) [2022-09-16 10:38:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 32139 transitions. [2022-09-16 10:38:35,108 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 32139 transitions. Word has length 191 [2022-09-16 10:38:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:35,109 INFO L495 AbstractCegarLoop]: Abstraction has 15492 states and 32139 transitions. [2022-09-16 10:38:35,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 10.911764705882353) internal successors, (371), 35 states have internal predecessors, (371), 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) [2022-09-16 10:38:35,109 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 32139 transitions. [2022-09-16 10:38:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-09-16 10:38:35,145 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:35,145 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-09-16 10:38:35,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-16 10:38:35,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:35,359 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:35,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:35,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1302905023, now seen corresponding path program 2 times [2022-09-16 10:38:35,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:35,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158804501] [2022-09-16 10:38:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:35,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:35,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158804501] [2022-09-16 10:38:35,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158804501] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:35,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10222489] [2022-09-16 10:38:35,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-16 10:38:35,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:35,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:35,624 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:38:35,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-16 10:38:35,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-16 10:38:35,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:38:35,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 20 conjunts are in the unsatisfiable core [2022-09-16 10:38:35,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:35,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:36,439 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 0 proven. 503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:36,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10222489] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:36,439 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:36,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 41 [2022-09-16 10:38:36,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704210590] [2022-09-16 10:38:36,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:36,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-09-16 10:38:36,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-09-16 10:38:36,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=510, Invalid=1212, Unknown=0, NotChecked=0, Total=1722 [2022-09-16 10:38:36,441 INFO L87 Difference]: Start difference. First operand 15492 states and 32139 transitions. Second operand has 42 states, 41 states have (on average 9.317073170731707) internal successors, (382), 42 states have internal predecessors, (382), 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) [2022-09-16 10:38:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:38:41,726 INFO L93 Difference]: Finished difference Result 84482 states and 167994 transitions. [2022-09-16 10:38:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-09-16 10:38:41,726 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 9.317073170731707) internal successors, (382), 42 states have internal predecessors, (382), 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 196 [2022-09-16 10:38:41,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:38:41,943 INFO L225 Difference]: With dead ends: 84482 [2022-09-16 10:38:41,944 INFO L226 Difference]: Without dead ends: 84482 [2022-09-16 10:38:41,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21751 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=15450, Invalid=32730, Unknown=0, NotChecked=0, Total=48180 [2022-09-16 10:38:41,952 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 9751 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9751 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-09-16 10:38:41,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9751 Valid, 2920 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-09-16 10:38:42,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84482 states. [2022-09-16 10:38:42,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84482 to 10148. [2022-09-16 10:38:42,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10148 states, 10143 states have (on average 2.029084097407079) internal successors, (20581), 10147 states have internal predecessors, (20581), 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) [2022-09-16 10:38:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10148 states to 10148 states and 20581 transitions. [2022-09-16 10:38:42,565 INFO L78 Accepts]: Start accepts. Automaton has 10148 states and 20581 transitions. Word has length 196 [2022-09-16 10:38:42,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:38:42,566 INFO L495 AbstractCegarLoop]: Abstraction has 10148 states and 20581 transitions. [2022-09-16 10:38:42,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 9.317073170731707) internal successors, (382), 42 states have internal predecessors, (382), 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) [2022-09-16 10:38:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 10148 states and 20581 transitions. [2022-09-16 10:38:42,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-09-16 10:38:42,586 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:38:42,586 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:38:42,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-16 10:38:42,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:42,799 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:38:42,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:38:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2069510867, now seen corresponding path program 3 times [2022-09-16 10:38:42,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:38:42,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895468977] [2022-09-16 10:38:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:38:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:38:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:38:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:43,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:38:43,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895468977] [2022-09-16 10:38:43,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895468977] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:38:43,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38891447] [2022-09-16 10:38:43,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:38:43,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:38:43,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:38:43,208 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:38:43,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-16 10:38:43,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-09-16 10:38:43,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:38:43,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 25 conjunts are in the unsatisfiable core [2022-09-16 10:38:43,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:38:43,607 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:43,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:38:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:38:44,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38891447] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:38:44,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:38:44,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2022-09-16 10:38:44,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909722818] [2022-09-16 10:38:44,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:38:44,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-09-16 10:38:44,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:38:44,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-09-16 10:38:44,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-09-16 10:38:44,261 INFO L87 Difference]: Start difference. First operand 10148 states and 20581 transitions. Second operand has 51 states, 50 states have (on average 7.9) internal successors, (395), 51 states have internal predecessors, (395), 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) [2022-09-16 10:39:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:00,643 INFO L93 Difference]: Finished difference Result 148326 states and 292044 transitions. [2022-09-16 10:39:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 348 states. [2022-09-16 10:39:00,643 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 7.9) internal successors, (395), 51 states have internal predecessors, (395), 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 203 [2022-09-16 10:39:00,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:00,940 INFO L225 Difference]: With dead ends: 148326 [2022-09-16 10:39:00,940 INFO L226 Difference]: Without dead ends: 148326 [2022-09-16 10:39:00,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57884 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=40294, Invalid=81856, Unknown=0, NotChecked=0, Total=122150 [2022-09-16 10:39:00,947 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 27844 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 1973 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27844 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1973 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:00,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27844 Valid, 2664 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1973 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-09-16 10:39:01,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148326 states. [2022-09-16 10:39:02,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148326 to 16148. [2022-09-16 10:39:02,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16148 states, 16143 states have (on average 2.0389023105990214) internal successors, (32914), 16147 states have internal predecessors, (32914), 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) [2022-09-16 10:39:02,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16148 states to 16148 states and 32914 transitions. [2022-09-16 10:39:02,163 INFO L78 Accepts]: Start accepts. Automaton has 16148 states and 32914 transitions. Word has length 203 [2022-09-16 10:39:02,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:02,164 INFO L495 AbstractCegarLoop]: Abstraction has 16148 states and 32914 transitions. [2022-09-16 10:39:02,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 7.9) internal successors, (395), 51 states have internal predecessors, (395), 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) [2022-09-16 10:39:02,164 INFO L276 IsEmpty]: Start isEmpty. Operand 16148 states and 32914 transitions. [2022-09-16 10:39:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-09-16 10:39:02,191 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:02,192 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-09-16 10:39:02,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-16 10:39:02,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:39:02,410 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:39:02,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash -158818163, now seen corresponding path program 3 times [2022-09-16 10:39:02,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:02,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661164498] [2022-09-16 10:39:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:02,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 0 proven. 2163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:02,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:02,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661164498] [2022-09-16 10:39:02,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661164498] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:39:02,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112691724] [2022-09-16 10:39:02,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-16 10:39:02,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:39:02,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:39:02,992 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:39:02,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-16 10:39:03,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-09-16 10:39:03,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:39:03,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 30 conjunts are in the unsatisfiable core [2022-09-16 10:39:03,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:39:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 0 proven. 2163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:03,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:39:04,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2163 backedges. 0 proven. 2163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:04,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112691724] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:39:04,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:39:04,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 61 [2022-09-16 10:39:04,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407924915] [2022-09-16 10:39:04,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:39:04,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-09-16 10:39:04,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:04,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-09-16 10:39:04,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1280, Invalid=2502, Unknown=0, NotChecked=0, Total=3782 [2022-09-16 10:39:04,468 INFO L87 Difference]: Start difference. First operand 16148 states and 32914 transitions. Second operand has 62 states, 61 states have (on average 10.19672131147541) internal successors, (622), 62 states have internal predecessors, (622), 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) [2022-09-16 10:39:19,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:39:19,083 INFO L93 Difference]: Finished difference Result 268342 states and 528267 transitions. [2022-09-16 10:39:19,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 379 states. [2022-09-16 10:39:19,083 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 10.19672131147541) internal successors, (622), 62 states have internal predecessors, (622), 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 316 [2022-09-16 10:39:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:39:19,774 INFO L225 Difference]: With dead ends: 268342 [2022-09-16 10:39:19,775 INFO L226 Difference]: Without dead ends: 268342 [2022-09-16 10:39:19,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 980 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70595 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=46423, Invalid=99119, Unknown=0, NotChecked=0, Total=145542 [2022-09-16 10:39:19,781 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 16265 mSDsluCounter, 4667 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 1045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16265 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1045 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-09-16 10:39:19,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16265 Valid, 4766 Invalid, 2045 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1045 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-09-16 10:39:20,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268342 states. [2022-09-16 10:39:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268342 to 42665. [2022-09-16 10:39:21,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42665 states, 42660 states have (on average 2.0951007969995312) internal successors, (89377), 42664 states have internal predecessors, (89377), 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) [2022-09-16 10:39:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42665 states to 42665 states and 89377 transitions. [2022-09-16 10:39:21,929 INFO L78 Accepts]: Start accepts. Automaton has 42665 states and 89377 transitions. Word has length 316 [2022-09-16 10:39:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:39:21,929 INFO L495 AbstractCegarLoop]: Abstraction has 42665 states and 89377 transitions. [2022-09-16 10:39:21,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 10.19672131147541) internal successors, (622), 62 states have internal predecessors, (622), 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) [2022-09-16 10:39:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 42665 states and 89377 transitions. [2022-09-16 10:39:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-09-16 10:39:21,984 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:39:21,984 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:39:22,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-16 10:39:22,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-09-16 10:39:22,209 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:39:22,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:39:22,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1799483875, now seen corresponding path program 4 times [2022-09-16 10:39:22,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:39:22,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489157733] [2022-09-16 10:39:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:39:22,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:39:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:39:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:22,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:39:22,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489157733] [2022-09-16 10:39:22,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489157733] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:39:22,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138097158] [2022-09-16 10:39:22,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-09-16 10:39:22,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:39:22,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:39:22,716 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:39:22,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-16 10:39:22,927 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-09-16 10:39:22,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:39:22,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 34 conjunts are in the unsatisfiable core [2022-09-16 10:39:22,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:39:23,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:23,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:39:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:39:24,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138097158] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:39:24,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:39:24,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 69 [2022-09-16 10:39:24,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99160686] [2022-09-16 10:39:24,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:39:24,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-09-16 10:39:24,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:39:24,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-09-16 10:39:24,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1428, Invalid=3402, Unknown=0, NotChecked=0, Total=4830 [2022-09-16 10:39:24,266 INFO L87 Difference]: Start difference. First operand 42665 states and 89377 transitions. Second operand has 70 states, 69 states have (on average 9.18840579710145) internal successors, (634), 70 states have internal predecessors, (634), 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) [2022-09-16 10:40:08,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:40:08,259 INFO L93 Difference]: Finished difference Result 467559 states and 946077 transitions. [2022-09-16 10:40:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 625 states. [2022-09-16 10:40:08,260 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 9.18840579710145) internal successors, (634), 70 states have internal predecessors, (634), 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 322 [2022-09-16 10:40:08,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:40:09,620 INFO L225 Difference]: With dead ends: 467559 [2022-09-16 10:40:09,620 INFO L226 Difference]: Without dead ends: 467559 [2022-09-16 10:40:09,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 626 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201725 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=126596, Invalid=267160, Unknown=0, NotChecked=0, Total=393756 [2022-09-16 10:40:09,637 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 33071 mSDsluCounter, 4547 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 1931 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33071 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 2921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1931 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:40:09,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33071 Valid, 4645 Invalid, 2921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1931 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-09-16 10:40:10,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467559 states. [2022-09-16 10:40:14,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467559 to 91234. [2022-09-16 10:40:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91234 states, 91229 states have (on average 2.127404662990935) internal successors, (194081), 91233 states have internal predecessors, (194081), 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) [2022-09-16 10:40:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91234 states to 91234 states and 194081 transitions. [2022-09-16 10:40:14,647 INFO L78 Accepts]: Start accepts. Automaton has 91234 states and 194081 transitions. Word has length 322 [2022-09-16 10:40:14,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:40:14,649 INFO L495 AbstractCegarLoop]: Abstraction has 91234 states and 194081 transitions. [2022-09-16 10:40:14,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 9.18840579710145) internal successors, (634), 70 states have internal predecessors, (634), 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) [2022-09-16 10:40:14,649 INFO L276 IsEmpty]: Start isEmpty. Operand 91234 states and 194081 transitions. [2022-09-16 10:40:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-09-16 10:40:14,788 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:40:14,788 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:40:14,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-09-16 10:40:14,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-09-16 10:40:14,989 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:40:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:40:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash -370988645, now seen corresponding path program 4 times [2022-09-16 10:40:14,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:40:14,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707175000] [2022-09-16 10:40:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:40:14,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:40:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:40:15,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:15,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:40:15,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707175000] [2022-09-16 10:40:15,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707175000] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:40:15,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291462277] [2022-09-16 10:40:15,490 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-09-16 10:40:15,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:40:15,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:40:15,491 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:40:15,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-09-16 10:40:15,856 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-09-16 10:40:15,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:40:15,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 35 conjunts are in the unsatisfiable core [2022-09-16 10:40:15,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:40:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:16,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:40:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:40:17,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291462277] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:40:17,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:40:17,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 71 [2022-09-16 10:40:17,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848779113] [2022-09-16 10:40:17,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:40:17,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-09-16 10:40:17,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:40:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-09-16 10:40:17,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1475, Invalid=3637, Unknown=0, NotChecked=0, Total=5112 [2022-09-16 10:40:17,187 INFO L87 Difference]: Start difference. First operand 91234 states and 194081 transitions. Second operand has 72 states, 71 states have (on average 8.95774647887324) internal successors, (636), 72 states have internal predecessors, (636), 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) [2022-09-16 10:41:00,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:41:00,021 INFO L93 Difference]: Finished difference Result 861094 states and 1769163 transitions. [2022-09-16 10:41:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 590 states. [2022-09-16 10:41:00,022 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 8.95774647887324) internal successors, (636), 72 states have internal predecessors, (636), 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 323 [2022-09-16 10:41:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:41:02,920 INFO L225 Difference]: With dead ends: 861094 [2022-09-16 10:41:02,921 INFO L226 Difference]: Without dead ends: 861094 [2022-09-16 10:41:02,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1200 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 591 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190514 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=114276, Invalid=236780, Unknown=0, NotChecked=0, Total=351056 [2022-09-16 10:41:02,940 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 29331 mSDsluCounter, 6718 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 1886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29331 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 3328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1886 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:41:02,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29331 Valid, 6822 Invalid, 3328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1886 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-09-16 10:41:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861094 states. [2022-09-16 10:41:09,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861094 to 69116. [2022-09-16 10:41:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69116 states, 69111 states have (on average 2.1147574192241465) internal successors, (146153), 69115 states have internal predecessors, (146153), 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) [2022-09-16 10:41:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69116 states to 69116 states and 146153 transitions. [2022-09-16 10:41:10,144 INFO L78 Accepts]: Start accepts. Automaton has 69116 states and 146153 transitions. Word has length 323 [2022-09-16 10:41:10,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:41:10,145 INFO L495 AbstractCegarLoop]: Abstraction has 69116 states and 146153 transitions. [2022-09-16 10:41:10,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 8.95774647887324) internal successors, (636), 72 states have internal predecessors, (636), 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) [2022-09-16 10:41:10,145 INFO L276 IsEmpty]: Start isEmpty. Operand 69116 states and 146153 transitions. [2022-09-16 10:41:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-09-16 10:41:10,235 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:41:10,235 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:41:10,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-09-16 10:41:10,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-09-16 10:41:10,436 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-09-16 10:41:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:41:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -831046387, now seen corresponding path program 5 times [2022-09-16 10:41:10,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:41:10,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189523640] [2022-09-16 10:41:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:41:10,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:41:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:41:11,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1479 backedges. 0 proven. 1479 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:11,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:41:11,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189523640] [2022-09-16 10:41:11,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189523640] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:41:11,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169239189] [2022-09-16 10:41:11,625 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-09-16 10:41:11,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:41:11,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:41:11,626 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:41:11,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-09-16 10:41:11,819 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2022-09-16 10:41:11,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-16 10:41:11,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 46 conjunts are in the unsatisfiable core [2022-09-16 10:41:11,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:41:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1479 backedges. 0 proven. 1479 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:12,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:41:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1479 backedges. 0 proven. 1479 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:41:13,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169239189] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:41:13,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:41:13,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 93 [2022-09-16 10:41:13,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837870588] [2022-09-16 10:41:13,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:41:13,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-09-16 10:41:13,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:41:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-09-16 10:41:13,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2256, Invalid=6486, Unknown=0, NotChecked=0, Total=8742 [2022-09-16 10:41:13,718 INFO L87 Difference]: Start difference. First operand 69116 states and 146153 transitions. Second operand has 94 states, 93 states have (on average 7.204301075268817) internal successors, (670), 94 states have internal predecessors, (670), 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)