/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-44898dd [2022-02-10 12:26:23,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 12:26:23,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 12:26:23,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 12:26:23,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 12:26:23,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 12:26:23,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 12:26:23,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 12:26:23,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 12:26:23,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 12:26:23,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 12:26:23,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 12:26:23,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 12:26:23,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 12:26:23,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 12:26:23,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 12:26:23,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 12:26:23,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 12:26:23,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 12:26:23,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 12:26:23,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 12:26:23,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 12:26:23,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 12:26:23,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 12:26:23,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 12:26:23,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 12:26:23,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 12:26:23,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 12:26:23,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 12:26:23,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 12:26:23,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 12:26:23,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 12:26:23,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 12:26:23,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 12:26:23,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 12:26:23,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 12:26:23,512 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 [2022-02-10 12:26:23,546 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 12:26:23,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 12:26:23,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 12:26:23,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 12:26:23,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 12:26:23,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 12:26:23,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 12:26:23,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 12:26:23,549 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 12:26:23,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 12:26:23,550 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 12:26:23,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 12:26:23,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 12:26:23,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 12:26:23,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 12:26:23,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 12:26:23,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 12:26:23,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 12:26:23,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 12:26:23,551 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 12:26:23,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 12:26:23,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 12:26:23,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 12:26:23,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 12:26:23,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 12:26:23,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 12:26:23,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 12:26:23,553 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 12:26:23,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 12:26:23,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 12:26:23,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 12:26:23,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 12:26:23,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 12:26:23,554 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 12:26:23,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 12:26:23,554 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-10 12:26:23,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 12:26:23,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 12:26:23,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 12:26:23,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 12:26:23,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 12:26:23,818 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 12:26:23,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-02-10 12:26:23,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488403ca4/73dffdf2116148248e6d8799bbf4a2d5/FLAGe3ce1880b [2022-02-10 12:26:24,397 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 12:26:24,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-02-10 12:26:24,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488403ca4/73dffdf2116148248e6d8799bbf4a2d5/FLAGe3ce1880b [2022-02-10 12:26:24,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488403ca4/73dffdf2116148248e6d8799bbf4a2d5 [2022-02-10 12:26:24,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 12:26:24,676 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 12:26:24,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 12:26:24,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 12:26:24,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 12:26:24,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:26:24" (1/1) ... [2022-02-10 12:26:24,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ed26f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:24, skipping insertion in model container [2022-02-10 12:26:24,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 12:26:24" (1/1) ... [2022-02-10 12:26:24,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 12:26:24,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 12:26:24,907 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] [2022-02-10 12:26:25,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 12:26:25,214 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 12:26:25,226 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] [2022-02-10 12:26:25,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 12:26:25,335 INFO L208 MainTranslator]: Completed translation [2022-02-10 12:26:25,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25 WrapperNode [2022-02-10 12:26:25,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 12:26:25,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 12:26:25,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 12:26:25,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 12:26:25,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,387 INFO L137 Inliner]: procedures = 364, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-02-10 12:26:25,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 12:26:25,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 12:26:25,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 12:26:25,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 12:26:25,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 12:26:25,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 12:26:25,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 12:26:25,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 12:26:25,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (1/1) ... [2022-02-10 12:26:25,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 12:26:25,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:26:25,440 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) [2022-02-10 12:26:25,443 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 [2022-02-10 12:26:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 12:26:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 12:26:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 12:26:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 12:26:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-10 12:26:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 12:26:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2022-02-10 12:26:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2022-02-10 12:26:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 12:26:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 12:26:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 12:26:25,478 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 12:26:25,679 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 12:26:25,681 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 12:26:25,840 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 12:26:25,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 12:26:25,847 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-10 12:26:25,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:26:25 BoogieIcfgContainer [2022-02-10 12:26:25,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 12:26:25,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 12:26:25,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 12:26:25,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 12:26:25,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 12:26:24" (1/3) ... [2022-02-10 12:26:25,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd50163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:26:25, skipping insertion in model container [2022-02-10 12:26:25,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 12:26:25" (2/3) ... [2022-02-10 12:26:25,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd50163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:26:25, skipping insertion in model container [2022-02-10 12:26:25,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:26:25" (3/3) ... [2022-02-10 12:26:25,856 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2022-02-10 12:26:25,860 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 12:26:25,861 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 12:26:25,861 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 12:26:25,861 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 12:26:25,904 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,904 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,905 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,906 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,906 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,906 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,907 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,907 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,907 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,907 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,908 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,908 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,908 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,908 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,908 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,909 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,915 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,917 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,919 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,920 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,920 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,921 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,921 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,922 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,922 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,922 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,922 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,923 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,923 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,923 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,923 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,923 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,924 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,924 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,924 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,924 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,925 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,925 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,925 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,925 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,925 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,925 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,926 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,926 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,926 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,926 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,929 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,929 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,929 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,930 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,930 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,930 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,930 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,930 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,930 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 12:26:25,942 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 12:26:25,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 12:26:25,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:26:26,004 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) [2022-02-10 12:26:26,018 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 [2022-02-10 12:26:26,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 12:26:26,047 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 [2022-02-10 12:26:26,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 12:26:26,171 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 73 transitions and produced 74 states. [2022-02-10 12:26:26,173 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:26:26,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:26:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1082767730, now seen corresponding path program 1 times [2022-02-10 12:26:26,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:26:26,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241762639] [2022-02-10 12:26:26,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:26:26,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:26:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:26:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:26:26,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:26:26,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241762639] [2022-02-10 12:26:26,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241762639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:26:26,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:26:26,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 12:26:26,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327394406] [2022-02-10 12:26:26,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:26:26,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 12:26:26,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:26:26,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 12:26:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 12:26:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:26:26,478 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:26:26,479 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) [2022-02-10 12:26:26,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:16,805 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14945 transitions and produced 14414 states. [2022-02-10 12:27:16,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:16,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 12:27:16,816 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash -137135436, now seen corresponding path program 1 times [2022-02-10 12:27:16,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:16,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120149440] [2022-02-10 12:27:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:16,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:27:16,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:16,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120149440] [2022-02-10 12:27:16,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120149440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:27:16,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 12:27:16,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 12:27:16,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619283382] [2022-02-10 12:27:16,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:27:16,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 12:27:16,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:16,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 12:27:16,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 12:27:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:16,884 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:16,884 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) [2022-02-10 12:27:16,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:16,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:16,938 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 88 transitions and produced 89 states. [2022-02-10 12:27:16,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:16,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 12:27:16,940 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:16,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:16,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1409393791, now seen corresponding path program 1 times [2022-02-10 12:27:16,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:16,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975670252] [2022-02-10 12:27:16,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:16,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:27:17,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:17,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975670252] [2022-02-10 12:27:17,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975670252] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:17,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914111095] [2022-02-10 12:27:17,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:17,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:17,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:17,076 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) [2022-02-10 12:27:17,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 12:27:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:17,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-10 12:27:17,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 12:27:17,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 12:27:17,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914111095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 12:27:17,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 12:27:17,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-02-10 12:27:17,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085909344] [2022-02-10 12:27:17,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 12:27:17,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 12:27:17,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:17,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 12:27:17,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-10 12:27:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:17,388 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:17,388 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) [2022-02-10 12:27:17,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:17,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:17,389 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:17,447 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 101 transitions and produced 102 states. [2022-02-10 12:27:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:17,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:17,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-10 12:27:17,655 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 [2022-02-10 12:27:17,656 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:17,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash -464838401, now seen corresponding path program 1 times [2022-02-10 12:27:17,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:17,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189954023] [2022-02-10 12:27:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:17,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 12:27:17,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:17,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189954023] [2022-02-10 12:27:17,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189954023] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:17,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483435415] [2022-02-10 12:27:17,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:17,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:17,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:17,759 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) [2022-02-10 12:27:17,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 12:27:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:17,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 12:27:17,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 12:27:18,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:18,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 12:27:18,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483435415] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:18,154 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:18,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 12:27:18,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898666317] [2022-02-10 12:27:18,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:18,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 12:27:18,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:18,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 12:27:18,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 12:27:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:18,157 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:18,158 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) [2022-02-10 12:27:18,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:18,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:18,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:18,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:18,959 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 137 transitions and produced 136 states. [2022-02-10 12:27:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:18,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 12:27:19,161 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 [2022-02-10 12:27:19,162 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:19,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:19,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1283919323, now seen corresponding path program 2 times [2022-02-10 12:27:19,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:19,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682830938] [2022-02-10 12:27:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:19,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:19,249 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 12:27:19,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:19,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682830938] [2022-02-10 12:27:19,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682830938] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:19,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154693250] [2022-02-10 12:27:19,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 12:27:19,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:19,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:19,252 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) [2022-02-10 12:27:19,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 12:27:19,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 12:27:19,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:27:19,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-10 12:27:19,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:19,488 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 12:27:19,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-10 12:27:19,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154693250] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:19,609 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:19,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-10 12:27:19,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370256944] [2022-02-10 12:27:19,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:19,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 12:27:19,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:19,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 12:27:19,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-10 12:27:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:19,612 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:19,612 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) [2022-02-10 12:27:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:19,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:19,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:19,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:19,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:20,193 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 163 transitions and produced 160 states. [2022-02-10 12:27:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:20,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-10 12:27:20,394 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 [2022-02-10 12:27:20,395 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:20,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1447238555, now seen corresponding path program 3 times [2022-02-10 12:27:20,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:20,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458747128] [2022-02-10 12:27:20,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:20,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-10 12:27:20,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:20,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458747128] [2022-02-10 12:27:20,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458747128] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:20,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350819182] [2022-02-10 12:27:20,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 12:27:20,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:20,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:20,497 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) [2022-02-10 12:27:20,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 12:27:20,639 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-10 12:27:20,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:27:20,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 12:27:20,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-10 12:27:20,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-10 12:27:21,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350819182] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:21,033 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:21,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-02-10 12:27:21,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005346333] [2022-02-10 12:27:21,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:21,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-10 12:27:21,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:21,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-10 12:27:21,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-02-10 12:27:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:21,036 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:21,036 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) [2022-02-10 12:27:21,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:21,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:21,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:21,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:21,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:21,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:21,678 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 235 transitions and produced 225 states. [2022-02-10 12:27:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:21,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 12:27:21,904 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 [2022-02-10 12:27:21,904 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:21,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:21,905 INFO L85 PathProgramCache]: Analyzing trace with hash -692690511, now seen corresponding path program 4 times [2022-02-10 12:27:21,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:21,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608291213] [2022-02-10 12:27:21,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:21,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-10 12:27:22,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:22,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608291213] [2022-02-10 12:27:22,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608291213] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:22,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912621210] [2022-02-10 12:27:22,122 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 12:27:22,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:22,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:22,123 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) [2022-02-10 12:27:22,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 12:27:22,238 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 12:27:22,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:27:22,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-10 12:27:22,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-10 12:27:22,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-10 12:27:22,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912621210] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:22,951 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:22,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-02-10 12:27:22,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690791759] [2022-02-10 12:27:22,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:22,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-10 12:27:22,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:22,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-10 12:27:22,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-02-10 12:27:22,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:22,953 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:22,954 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) [2022-02-10 12:27:22,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:22,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:22,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:22,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:22,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:22,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:22,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:24,324 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 379 transitions and produced 354 states. [2022-02-10 12:27:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:24,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-10 12:27:24,526 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 [2022-02-10 12:27:24,527 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:24,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:24,527 INFO L85 PathProgramCache]: Analyzing trace with hash 166775881, now seen corresponding path program 5 times [2022-02-10 12:27:24,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:24,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344955795] [2022-02-10 12:27:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:24,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-10 12:27:24,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:24,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344955795] [2022-02-10 12:27:24,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344955795] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:24,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587559793] [2022-02-10 12:27:24,990 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 12:27:24,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:24,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:24,991 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) [2022-02-10 12:27:24,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 12:27:25,171 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2022-02-10 12:27:25,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:27:25,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 12:27:25,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2022-02-10 12:27:25,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2022-02-10 12:27:25,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587559793] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:25,901 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:25,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 47 [2022-02-10 12:27:25,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807215554] [2022-02-10 12:27:25,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:25,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-02-10 12:27:25,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:25,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-02-10 12:27:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1803, Unknown=0, NotChecked=0, Total=2162 [2022-02-10 12:27:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:25,905 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:25,905 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) [2022-02-10 12:27:25,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:25,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:25,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:25,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:25,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:25,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:25,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:25,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:27,658 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 449 transitions and produced 417 states. [2022-02-10 12:27:27,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:27,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 12:27:27,859 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 [2022-02-10 12:27:27,860 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:27,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1166027292, now seen corresponding path program 6 times [2022-02-10 12:27:27,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:27,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359705015] [2022-02-10 12:27:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:27,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 0 proven. 976 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-02-10 12:27:28,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:28,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359705015] [2022-02-10 12:27:28,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359705015] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:28,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806923701] [2022-02-10 12:27:28,394 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 12:27:28,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:28,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:28,396 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) [2022-02-10 12:27:28,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 12:27:28,672 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-02-10 12:27:28,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:27:28,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-10 12:27:28,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-02-10 12:27:29,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-02-10 12:27:29,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806923701] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:29,888 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:29,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 17, 17] total 65 [2022-02-10 12:27:29,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650033877] [2022-02-10 12:27:29,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:29,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-02-10 12:27:29,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:29,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-02-10 12:27:29,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=594, Invalid=3566, Unknown=0, NotChecked=0, Total=4160 [2022-02-10 12:27:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:29,894 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:29,894 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) [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:29,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:32,449 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 571 transitions and produced 523 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:32,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-10 12:27:32,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 12:27:32,655 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 [2022-02-10 12:27:32,655 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:32,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:32,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1069084305, now seen corresponding path program 7 times [2022-02-10 12:27:32,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:32,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550700721] [2022-02-10 12:27:32,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:32,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2275 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-02-10 12:27:33,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:33,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550700721] [2022-02-10 12:27:33,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550700721] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:33,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592117944] [2022-02-10 12:27:33,239 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 12:27:33,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:33,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:33,240 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) [2022-02-10 12:27:33,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 12:27:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:33,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 36 conjunts are in the unsatisfiable core [2022-02-10 12:27:33,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2275 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-02-10 12:27:33,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2275 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-02-10 12:27:34,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592117944] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:34,602 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:34,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 43 [2022-02-10 12:27:34,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22060774] [2022-02-10 12:27:34,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:34,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-10 12:27:34,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:34,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-10 12:27:34,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 12:27:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:34,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:34,605 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) [2022-02-10 12:27:34,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:34,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:34,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-10 12:27:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:36,655 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 625 transitions and produced 571 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-10 12:27:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 12:27:36,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 12:27:36,857 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 [2022-02-10 12:27:36,858 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:36,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash -130449048, now seen corresponding path program 8 times [2022-02-10 12:27:36,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:36,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104742033] [2022-02-10 12:27:36,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:36,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2710 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-02-10 12:27:37,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:37,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104742033] [2022-02-10 12:27:37,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104742033] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:37,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385120861] [2022-02-10 12:27:37,385 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 12:27:37,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:37,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:37,387 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) [2022-02-10 12:27:37,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 12:27:37,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 12:27:37,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:27:37,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-10 12:27:37,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:38,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2710 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-02-10 12:27:38,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2710 backedges. 0 proven. 1170 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2022-02-10 12:27:38,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385120861] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:38,858 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:38,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2022-02-10 12:27:38,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684775544] [2022-02-10 12:27:38,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:38,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-10 12:27:38,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:38,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-10 12:27:38,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-02-10 12:27:38,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:38,861 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:38,861 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) [2022-02-10 12:27:38,861 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 12:27:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:41,034 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 690 transitions and produced 627 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-10 12:27:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 12:27:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 12:27:41,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 12:27:41,235 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 [2022-02-10 12:27:41,236 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 12:27:41,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 12:27:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash 940865720, now seen corresponding path program 9 times [2022-02-10 12:27:41,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 12:27:41,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525068227] [2022-02-10 12:27:41,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 12:27:41,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 12:27:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 12:27:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:27:43,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 12:27:43,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525068227] [2022-02-10 12:27:43,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525068227] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 12:27:43,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058689099] [2022-02-10 12:27:43,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 12:27:43,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 12:27:43,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 12:27:43,312 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) [2022-02-10 12:27:43,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 12:27:43,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2022-02-10 12:27:43,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 12:27:43,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-02-10 12:27:43,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 12:27:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:27:45,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 12:27:47,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 12:27:47,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058689099] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 12:27:47,228 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 12:27:47,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 68 [2022-02-10 12:27:47,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276169991] [2022-02-10 12:27:47,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 12:27:47,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-10 12:27:47,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 12:27:47,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-10 12:27:47,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=4421, Unknown=0, NotChecked=0, Total=4556 [2022-02-10 12:27:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:47,232 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 12:27:47,233 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) [2022-02-10 12:27:47,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 12:27:47,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.