/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 08:03:22,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 08:03:22,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 08:03:22,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 08:03:22,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 08:03:22,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 08:03:22,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 08:03:22,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 08:03:22,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 08:03:22,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 08:03:22,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 08:03:22,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 08:03:22,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 08:03:22,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 08:03:22,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 08:03:22,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 08:03:22,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 08:03:22,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 08:03:22,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 08:03:22,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 08:03:22,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 08:03:22,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 08:03:22,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 08:03:22,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 08:03:22,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 08:03:22,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 08:03:22,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 08:03:22,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 08:03:22,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 08:03:22,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 08:03:22,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 08:03:22,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 08:03:22,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 08:03:22,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 08:03:22,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 08:03:22,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 08:03:22,789 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-MCRwithoutDepranks-Lazy.epf [2022-03-04 08:03:22,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 08:03:22,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 08:03:22,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 08:03:22,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 08:03:22,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 08:03:22,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 08:03:22,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 08:03:22,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 08:03:22,820 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 08:03:22,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 08:03:22,821 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 08:03:22,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 08:03:22,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 08:03:22,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 08:03:22,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 08:03:22,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 08:03:22,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 08:03:22,822 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 08:03:22,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 08:03:22,822 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 08:03:22,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 08:03:22,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 08:03:22,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 08:03:22,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 08:03:22,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 08:03:22,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 08:03:22,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 08:03:22,824 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 08:03:22,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 08:03:23,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 08:03:23,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 08:03:23,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 08:03:23,043 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-04 08:03:23,043 INFO L275 PluginConnector]: CDTParser initialized [2022-03-04 08:03:23,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-03-04 08:03:23,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13066a97/70dba2841edb43488f432bfe4eb62388/FLAGc5b4be371 [2022-03-04 08:03:23,522 INFO L306 CDTParser]: Found 1 translation units. [2022-03-04 08:03:23,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-03-04 08:03:23,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13066a97/70dba2841edb43488f432bfe4eb62388/FLAGc5b4be371 [2022-03-04 08:03:23,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13066a97/70dba2841edb43488f432bfe4eb62388 [2022-03-04 08:03:23,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 08:03:23,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-04 08:03:23,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-04 08:03:23,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-04 08:03:23,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-04 08:03:23,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 08:03:23" (1/1) ... [2022-03-04 08:03:23,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f408ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:23, skipping insertion in model container [2022-03-04 08:03:23,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 08:03:23" (1/1) ... [2022-03-04 08:03:23,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-04 08:03:23,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-04 08:03:24,105 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] [2022-03-04 08:03:24,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 08:03:24,284 INFO L203 MainTranslator]: Completed pre-run [2022-03-04 08:03:24,293 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] [2022-03-04 08:03:24,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-04 08:03:24,371 INFO L208 MainTranslator]: Completed translation [2022-03-04 08:03:24,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24 WrapperNode [2022-03-04 08:03:24,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-04 08:03:24,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 08:03:24,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 08:03:24,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 08:03:24,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,421 INFO L137 Inliner]: procedures = 364, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-03-04 08:03:24,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 08:03:24,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 08:03:24,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 08:03:24,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 08:03:24,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 08:03:24,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 08:03:24,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 08:03:24,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 08:03:24,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (1/1) ... [2022-03-04 08:03:24,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 08:03:24,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:24,476 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) [2022-03-04 08:03:24,487 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 [2022-03-04 08:03:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2022-03-04 08:03:24,509 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-04 08:03:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 08:03:24,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 08:03:24,510 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 08:03:24,594 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 08:03:24,596 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 08:03:24,747 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 08:03:24,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 08:03:24,753 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-04 08:03:24,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 08:03:24 BoogieIcfgContainer [2022-03-04 08:03:24,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 08:03:24,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 08:03:24,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 08:03:24,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 08:03:24,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 08:03:23" (1/3) ... [2022-03-04 08:03:24,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2205c86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 08:03:24, skipping insertion in model container [2022-03-04 08:03:24,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:03:24" (2/3) ... [2022-03-04 08:03:24,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2205c86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 08:03:24, skipping insertion in model container [2022-03-04 08:03:24,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 08:03:24" (3/3) ... [2022-03-04 08:03:24,760 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2022-03-04 08:03:24,764 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 08:03:24,764 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 08:03:24,764 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 08:03:24,764 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 08:03:24,785 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,785 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,785 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,785 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,786 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,787 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,787 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,787 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,787 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,787 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,788 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,788 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,788 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,788 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,788 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,789 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,789 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,789 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,789 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,789 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,789 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,790 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,790 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,790 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,790 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,790 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,790 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,790 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,791 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,791 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,791 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,791 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,791 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,791 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,791 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,792 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,792 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,792 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,792 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,795 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,795 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,795 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,795 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,795 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,795 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,796 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,796 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,796 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 08:03:24,799 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-04 08:03:24,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 08:03:24,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:24,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 08:03:24,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 08:03:24,855 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 08:03:24,860 INFO L339 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 08:03:24,861 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-04 08:03:24,946 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 73 transitions and produced 74 states. [2022-03-04 08:03:24,949 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:24,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1082767730, now seen corresponding path program 1 times [2022-03-04 08:03:24,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:24,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867722497] [2022-03-04 08:03:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:24,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 08:03:25,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:25,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867722497] [2022-03-04 08:03:25,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867722497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 08:03:25,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 08:03:25,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-04 08:03:25,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210163836] [2022-03-04 08:03:25,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 08:03:25,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-04 08:03:25,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:25,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-04 08:03:25,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-04 08:03:25,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:25,125 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:25,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2022-03-04 08:03:25,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:36,914 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11368 transitions and produced 10854 states. [2022-03-04 08:03:36,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:36,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 08:03:36,921 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:36,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:36,922 INFO L85 PathProgramCache]: Analyzing trace with hash -137135436, now seen corresponding path program 1 times [2022-03-04 08:03:36,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:36,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946801382] [2022-03-04 08:03:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:36,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 08:03:37,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:37,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946801382] [2022-03-04 08:03:37,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946801382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 08:03:37,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 08:03:37,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 08:03:37,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019649594] [2022-03-04 08:03:37,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 08:03:37,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 08:03:37,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:37,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 08:03:37,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 08:03:37,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,004 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:37,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2022-03-04 08:03:37,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,034 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 88 transitions and produced 89 states. [2022-03-04 08:03:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:37,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-04 08:03:37,035 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:37,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:37,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1409393791, now seen corresponding path program 1 times [2022-03-04 08:03:37,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:37,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304330335] [2022-03-04 08:03:37,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:37,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:37,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 08:03:37,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:37,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304330335] [2022-03-04 08:03:37,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304330335] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:37,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159149335] [2022-03-04 08:03:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:37,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:37,123 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) [2022-03-04 08:03:37,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 08:03:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:37,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-04 08:03:37,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 08:03:37,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-04 08:03:37,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159149335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 08:03:37,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-04 08:03:37,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-03-04 08:03:37,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14121] [2022-03-04 08:03:37,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 08:03:37,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 08:03:37,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:37,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 08:03:37,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-04 08:03:37,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,335 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:37,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2022-03-04 08:03:37,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:37,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,353 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 101 transitions and produced 102 states. [2022-03-04 08:03:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:37,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:37,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-04 08:03:37,568 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:37,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:37,569 INFO L85 PathProgramCache]: Analyzing trace with hash -464838401, now seen corresponding path program 1 times [2022-03-04 08:03:37,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:37,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48139340] [2022-03-04 08:03:37,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:37,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 08:03:37,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:37,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48139340] [2022-03-04 08:03:37,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48139340] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:37,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387403712] [2022-03-04 08:03:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:37,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:37,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:37,625 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) [2022-03-04 08:03:37,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 08:03:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:37,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-04 08:03:37,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 08:03:37,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:37,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-04 08:03:37,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387403712] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:37,910 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:37,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-04 08:03:37,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705842733] [2022-03-04 08:03:37,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:37,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-04 08:03:37,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:37,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-04 08:03:37,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-04 08:03:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,912 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:37,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2022-03-04 08:03:37,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:37,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:37,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:37,912 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:38,065 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 137 transitions and produced 136 states. [2022-03-04 08:03:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:38,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:38,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:38,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:38,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:38,276 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:38,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1283919323, now seen corresponding path program 2 times [2022-03-04 08:03:38,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:38,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219295019] [2022-03-04 08:03:38,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-04 08:03:38,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:38,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219295019] [2022-03-04 08:03:38,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219295019] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:38,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654444941] [2022-03-04 08:03:38,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 08:03:38,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:38,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:38,381 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) [2022-03-04 08:03:38,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 08:03:38,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 08:03:38,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:03:38,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-04 08:03:38,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-04 08:03:38,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-04 08:03:38,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654444941] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:38,679 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:38,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-04 08:03:38,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664488236] [2022-03-04 08:03:38,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:38,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-04 08:03:38,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:38,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-04 08:03:38,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-04 08:03:38,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:38,682 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:38,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 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) [2022-03-04 08:03:38,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:38,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:38,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:38,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:38,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:38,840 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 163 transitions and produced 160 states. [2022-03-04 08:03:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:38,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 08:03:39,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:39,052 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1447238555, now seen corresponding path program 3 times [2022-03-04 08:03:39,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:39,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327121507] [2022-03-04 08:03:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:39,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:39,139 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 08:03:39,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:39,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327121507] [2022-03-04 08:03:39,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327121507] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:39,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065471714] [2022-03-04 08:03:39,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 08:03:39,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:39,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:39,141 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) [2022-03-04 08:03:39,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 08:03:39,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-03-04 08:03:39,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:03:39,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-04 08:03:39,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 08:03:39,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 08:03:39,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065471714] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:39,584 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:39,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-04 08:03:39,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910557323] [2022-03-04 08:03:39,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:39,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 08:03:39,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:39,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 08:03:39,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-04 08:03:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:39,586 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:39,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.055555555555555) internal successors, (127), 18 states have internal predecessors, (127), 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) [2022-03-04 08:03:39,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:39,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:39,587 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:39,868 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 235 transitions and produced 225 states. [2022-03-04 08:03:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:39,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:40,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:40,069 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:40,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash -692690511, now seen corresponding path program 4 times [2022-03-04 08:03:40,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:40,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133649481] [2022-03-04 08:03:40,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:40,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 08:03:40,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:40,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133649481] [2022-03-04 08:03:40,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133649481] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:40,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533920455] [2022-03-04 08:03:40,230 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 08:03:40,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:40,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:40,231 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) [2022-03-04 08:03:40,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 08:03:40,321 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 08:03:40,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:03:40,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-04 08:03:40,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 08:03:40,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 08:03:40,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533920455] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:40,862 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:40,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-03-04 08:03:40,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018521819] [2022-03-04 08:03:40,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:40,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-04 08:03:40,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-04 08:03:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-03-04 08:03:40,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:40,864 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:40,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.617647058823529) internal successors, (191), 34 states have internal predecessors, (191), 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) [2022-03-04 08:03:40,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:40,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:40,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:40,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:40,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:40,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:40,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:41,531 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 379 transitions and produced 354 states. [2022-03-04 08:03:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:41,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:41,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:41,733 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:41,733 INFO L85 PathProgramCache]: Analyzing trace with hash 166775881, now seen corresponding path program 5 times [2022-03-04 08:03:41,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:41,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305575162] [2022-03-04 08:03:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:41,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:42,149 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-04 08:03:42,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:42,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305575162] [2022-03-04 08:03:42,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305575162] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:42,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925730371] [2022-03-04 08:03:42,150 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 08:03:42,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:42,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:42,152 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) [2022-03-04 08:03:42,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 08:03:42,287 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2022-03-04 08:03:42,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:03:42,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-04 08:03:42,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2022-03-04 08:03:42,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:42,917 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2022-03-04 08:03:42,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925730371] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:42,917 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:42,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 47 [2022-03-04 08:03:42,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128950013] [2022-03-04 08:03:42,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:42,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-04 08:03:42,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:42,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-04 08:03:42,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1803, Unknown=0, NotChecked=0, Total=2162 [2022-03-04 08:03:42,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:42,920 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:42,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 5.808510638297872) internal successors, (273), 47 states have internal predecessors, (273), 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) [2022-03-04 08:03:42,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:42,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:42,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:42,920 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:42,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:42,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:42,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:42,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:44,145 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 449 transitions and produced 417 states. [2022-03-04 08:03:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:44,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:44,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:44,347 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1166027292, now seen corresponding path program 6 times [2022-03-04 08:03:44,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:44,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745828963] [2022-03-04 08:03:44,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 0 proven. 976 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-03-04 08:03:44,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:44,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745828963] [2022-03-04 08:03:44,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745828963] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:44,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602003486] [2022-03-04 08:03:44,774 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 08:03:44,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:44,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:44,776 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) [2022-03-04 08:03:44,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 08:03:45,005 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-03-04 08:03:45,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:03:45,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-04 08:03:45,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-03-04 08:03:45,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:46,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-03-04 08:03:46,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602003486] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:46,144 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:46,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 17, 17] total 65 [2022-03-04 08:03:46,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767837293] [2022-03-04 08:03:46,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:46,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-03-04 08:03:46,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:46,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-03-04 08:03:46,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=594, Invalid=3566, Unknown=0, NotChecked=0, Total=4160 [2022-03-04 08:03:46,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:46,148 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:46,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 5.676923076923077) internal successors, (369), 65 states have internal predecessors, (369), 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) [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:46,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:47,860 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 571 transitions and produced 523 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:03:47,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:48,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-04 08:03:48,062 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:48,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1069084305, now seen corresponding path program 7 times [2022-03-04 08:03:48,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:48,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705354235] [2022-03-04 08:03:48,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:48,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2275 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-03-04 08:03:48,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:48,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705354235] [2022-03-04 08:03:48,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705354235] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:48,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719240977] [2022-03-04 08:03:48,508 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 08:03:48,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:48,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:48,510 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) [2022-03-04 08:03:48,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 08:03:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:48,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 36 conjunts are in the unsatisfiable core [2022-03-04 08:03:48,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2275 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-03-04 08:03:49,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:49,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2275 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-03-04 08:03:49,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719240977] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:49,639 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:49,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 43 [2022-03-04 08:03:49,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096487635] [2022-03-04 08:03:49,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:49,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-04 08:03:49,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-04 08:03:49,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-03-04 08:03:49,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:49,641 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:49,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.372093023255814) internal successors, (231), 43 states have internal predecessors, (231), 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) [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:03:49,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:50,981 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 625 transitions and produced 571 states. [2022-03-04 08:03:50,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:50,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:03:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:03:51,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:51,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-04 08:03:51,184 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:51,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:51,184 INFO L85 PathProgramCache]: Analyzing trace with hash -130449048, now seen corresponding path program 8 times [2022-03-04 08:03:51,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:51,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785448464] [2022-03-04 08:03:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:51,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2710 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-04 08:03:51,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:51,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785448464] [2022-03-04 08:03:51,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785448464] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:51,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043131312] [2022-03-04 08:03:51,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 08:03:51,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:51,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:51,627 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) [2022-03-04 08:03:51,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 08:03:51,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 08:03:51,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:03:51,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-04 08:03:51,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:52,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2710 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-04 08:03:52,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2710 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-04 08:03:52,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043131312] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:52,815 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:52,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2022-03-04 08:03:52,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124385847] [2022-03-04 08:03:52,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:52,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-04 08:03:52,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:52,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-04 08:03:52,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-03-04 08:03:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:52,817 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:52,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.6976744186046515) internal successors, (288), 43 states have internal predecessors, (288), 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) [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:03:52,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:54,036 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 690 transitions and produced 627 states. [2022-03-04 08:03:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:54,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:54,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:54,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:54,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:54,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:03:54,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:03:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:03:54,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 08:03:54,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-04 08:03:54,246 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:03:54,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:03:54,247 INFO L85 PathProgramCache]: Analyzing trace with hash 940865720, now seen corresponding path program 9 times [2022-03-04 08:03:54,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:03:54,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842082535] [2022-03-04 08:03:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:03:54,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:03:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:03:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 08:03:56,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:03:56,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842082535] [2022-03-04 08:03:56,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842082535] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:03:56,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617406613] [2022-03-04 08:03:56,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 08:03:56,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:03:56,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:03:56,102 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) [2022-03-04 08:03:56,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 08:03:56,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2022-03-04 08:03:56,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:03:56,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-04 08:03:56,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:03:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 08:03:58,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 08:03:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 08:03:59,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617406613] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 08:03:59,423 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 08:03:59,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 68 [2022-03-04 08:03:59,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412571271] [2022-03-04 08:03:59,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 08:03:59,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-04 08:03:59,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:03:59,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-04 08:03:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=4421, Unknown=0, NotChecked=0, Total=4556 [2022-03-04 08:03:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:59,426 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:03:59,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 6.5) internal successors, (442), 68 states have internal predecessors, (442), 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) [2022-03-04 08:03:59,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:03:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:20,914 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 80522 transitions and produced 42355 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:05:20,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 08:05:21,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-04 08:05:21,117 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:05:21,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:05:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash -715429016, now seen corresponding path program 10 times [2022-03-04 08:05:21,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:05:21,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914096379] [2022-03-04 08:05:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:05:21,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:05:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:05:21,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3871 backedges. 2140 proven. 191 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-04 08:05:21,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:05:21,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914096379] [2022-03-04 08:05:21,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914096379] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:05:21,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196202743] [2022-03-04 08:05:21,764 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 08:05:21,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:05:21,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:05:21,766 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) [2022-03-04 08:05:21,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-04 08:05:22,086 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 08:05:22,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:05:22,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-04 08:05:22,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:05:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3871 backedges. 2331 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-03-04 08:05:22,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-04 08:05:22,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196202743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 08:05:22,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-04 08:05:22,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [43] total 45 [2022-03-04 08:05:22,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066438618] [2022-03-04 08:05:22,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 08:05:22,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-04 08:05:22,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:05:22,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-04 08:05:22,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=1491, Unknown=0, NotChecked=0, Total=1980 [2022-03-04 08:05:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:22,639 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:05:22,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.906976744186046) internal successors, (297), 43 states have internal predecessors, (297), 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) [2022-03-04 08:05:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:22,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:05:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:05:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:05:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:05:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:05:22,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:30,635 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5799 transitions and produced 4942 states. [2022-03-04 08:05:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-04 08:05:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 08:05:30,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-03-04 08:05:30,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-04 08:05:30,837 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-04 08:05:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 08:05:30,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1984145403, now seen corresponding path program 11 times [2022-03-04 08:05:30,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 08:05:30,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136479730] [2022-03-04 08:05:30,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 08:05:30,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 08:05:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 08:05:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3811 backedges. 1567 proven. 134 refuted. 0 times theorem prover too weak. 2110 trivial. 0 not checked. [2022-03-04 08:05:31,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 08:05:31,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136479730] [2022-03-04 08:05:31,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136479730] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 08:05:31,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122289218] [2022-03-04 08:05:31,398 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 08:05:31,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 08:05:31,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 08:05:31,400 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) [2022-03-04 08:05:31,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-04 08:05:31,742 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2022-03-04 08:05:31,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 08:05:31,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-04 08:05:31,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 08:05:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3811 backedges. 1701 proven. 0 refuted. 0 times theorem prover too weak. 2110 trivial. 0 not checked. [2022-03-04 08:05:32,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-04 08:05:32,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122289218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 08:05:32,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-04 08:05:32,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [43] total 45 [2022-03-04 08:05:32,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146050560] [2022-03-04 08:05:32,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 08:05:32,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-04 08:05:32,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 08:05:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-04 08:05:32,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=1491, Unknown=0, NotChecked=0, Total=1980 [2022-03-04 08:05:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:32,264 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 08:05:32,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 5.511627906976744) internal successors, (237), 43 states have internal predecessors, (237), 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) [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 08:05:32,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-04 08:05:32,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 08:05:32,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:32,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-04 08:05:32,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-03-04 08:05:32,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 08:05:32,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.