/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/weaver/parallel-ticket-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 07:51:14,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 07:51:14,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 07:51:14,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 07:51:14,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 07:51:14,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 07:51:14,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 07:51:14,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 07:51:14,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 07:51:14,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 07:51:14,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 07:51:14,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 07:51:14,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 07:51:14,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 07:51:14,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 07:51:14,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 07:51:14,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 07:51:14,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 07:51:14,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 07:51:14,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 07:51:14,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 07:51:14,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 07:51:14,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 07:51:14,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 07:51:14,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-02 07:51:14,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-02 07:51:14,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-02 07:51:14,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-02 07:51:14,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-02 07:51:14,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-02 07:51:14,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 07:51:14,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 07:51:14,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 07:51:14,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 07:51:14,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 07:51:14,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 07:51:14,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 07:51:14,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 07:51:14,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 07:51:14,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 07:51:14,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 07:51:14,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-02 07:51:14,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 07:51:14,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 07:51:14,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 07:51:14,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 07:51:14,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 07:51:14,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 07:51:14,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 07:51:14,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 07:51:14,438 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 07:51:14,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 07:51:14,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 07:51:14,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 07:51:14,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 07:51:14,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 07:51:14,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 07:51:14,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 07:51:14,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 07:51:14,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 07:51:14,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 07:51:14,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 07:51:14,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 07:51:14,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 07:51:14,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 07:51:14,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 07:51:14,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-02 07:51:14,628 INFO L275 PluginConnector]: CDTParser initialized [2022-03-02 07:51:14,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2022-03-02 07:51:14,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1753126/ae620c9608f94040b73bb7d4ee24a27c/FLAG9377ba6a3 [2022-03-02 07:51:15,076 INFO L306 CDTParser]: Found 1 translation units. [2022-03-02 07:51:15,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2022-03-02 07:51:15,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1753126/ae620c9608f94040b73bb7d4ee24a27c/FLAG9377ba6a3 [2022-03-02 07:51:15,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1753126/ae620c9608f94040b73bb7d4ee24a27c [2022-03-02 07:51:15,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 07:51:15,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-02 07:51:15,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-02 07:51:15,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-02 07:51:15,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-02 07:51:15,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66833bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15, skipping insertion in model container [2022-03-02 07:51:15,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-02 07:51:15,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-02 07:51:15,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c[2652,2665] [2022-03-02 07:51:15,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 07:51:15,632 INFO L203 MainTranslator]: Completed pre-run [2022-03-02 07:51:15,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c[2652,2665] [2022-03-02 07:51:15,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-02 07:51:15,659 INFO L208 MainTranslator]: Completed translation [2022-03-02 07:51:15,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15 WrapperNode [2022-03-02 07:51:15,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-02 07:51:15,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 07:51:15,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 07:51:15,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 07:51:15,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,689 INFO L137 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 118 [2022-03-02 07:51:15,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 07:51:15,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 07:51:15,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 07:51:15,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 07:51:15,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 07:51:15,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 07:51:15,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 07:51:15,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 07:51:15,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (1/1) ... [2022-03-02 07:51:15,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 07:51:15,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 07:51:15,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-02 07:51:15,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-02 07:51:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-02 07:51:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 07:51:15,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 07:51:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 07:51:15,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 07:51:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-02 07:51:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-02 07:51:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-02 07:51:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-02 07:51:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-02 07:51:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 07:51:15,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 07:51:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-02 07:51:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-02 07:51:15,803 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 07:51:15,856 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 07:51:15,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 07:51:16,056 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 07:51:16,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 07:51:16,090 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 07:51:16,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 07:51:16 BoogieIcfgContainer [2022-03-02 07:51:16,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 07:51:16,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 07:51:16,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 07:51:16,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 07:51:16,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.03 07:51:15" (1/3) ... [2022-03-02 07:51:16,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7ff2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 07:51:16, skipping insertion in model container [2022-03-02 07:51:16,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.03 07:51:15" (2/3) ... [2022-03-02 07:51:16,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7ff2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 07:51:16, skipping insertion in model container [2022-03-02 07:51:16,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 07:51:16" (3/3) ... [2022-03-02 07:51:16,101 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2022-03-02 07:51:16,105 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 07:51:16,105 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 07:51:16,105 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 07:51:16,106 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 07:51:16,131 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,131 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,131 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,132 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,133 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,133 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,134 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,134 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,134 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,134 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,135 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,135 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,135 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,135 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,135 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,137 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,137 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,137 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,137 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,137 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,138 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,138 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,138 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,138 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,139 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-02 07:51:16,141 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 07:51:16,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 07:51:16,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 07:51:16,173 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 07:51:16,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 07:51:16,212 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 07:51:16,217 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-02 07:51:16,217 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 07:51:16,293 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 110 transitions and produced 111 states. [2022-03-02 07:51:16,295 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:51:16,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:51:16,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1391098523, now seen corresponding path program 1 times [2022-03-02 07:51:16,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:51:16,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168541295] [2022-03-02 07:51:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:51:16,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:51:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:51:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 07:51:16,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:51:16,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168541295] [2022-03-02 07:51:16,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168541295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:51:16,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:51:16,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-02 07:51:16,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109781453] [2022-03-02 07:51:16,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:51:16,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-02 07:51:16,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:51:16,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-02 07:51:16,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-02 07:51:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:16,587 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:51:16,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 07:51:16,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:16,663 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 110 transitions and produced 111 states. [2022-03-02 07:51:16,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:16,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 07:51:16,664 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:51:16,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:51:16,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1651504199, now seen corresponding path program 1 times [2022-03-02 07:51:16,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:51:16,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391141629] [2022-03-02 07:51:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:51:16,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:51:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:51:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 07:51:17,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:51:17,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391141629] [2022-03-02 07:51:17,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391141629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:51:17,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:51:17,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-02 07:51:17,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774237648] [2022-03-02 07:51:17,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:51:17,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-02 07:51:17,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:51:17,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-02 07:51:17,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-03-02 07:51:17,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:17,018 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:51:17,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 07:51:17,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:17,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:20,583 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 20408 transitions and produced 20409 states. [2022-03-02 07:51:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-02 07:51:20,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-02 07:51:20,584 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:51:20,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:51:20,585 INFO L85 PathProgramCache]: Analyzing trace with hash 659203, now seen corresponding path program 2 times [2022-03-02 07:51:20,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:51:20,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246842727] [2022-03-02 07:51:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:51:20,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:51:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:51:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 07:51:20,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:51:20,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246842727] [2022-03-02 07:51:20,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246842727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:51:20,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:51:20,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-02 07:51:20,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518593729] [2022-03-02 07:51:20,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:51:20,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-02 07:51:20,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:51:20,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-02 07:51:20,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-02 07:51:20,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:20,676 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:51:20,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 07:51:20,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:20,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-02 07:51:20,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:24,191 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 21218 transitions and produced 21219 states. [2022-03-02 07:51:24,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:24,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-02 07:51:24,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:51:24,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-02 07:51:24,193 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:51:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:51:24,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1232315185, now seen corresponding path program 3 times [2022-03-02 07:51:24,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:51:24,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418429305] [2022-03-02 07:51:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:51:24,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:51:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:51:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 07:51:24,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:51:24,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418429305] [2022-03-02 07:51:24,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418429305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:51:24,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:51:24,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-02 07:51:24,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250210574] [2022-03-02 07:51:24,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:51:24,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-02 07:51:24,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:51:24,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-02 07:51:24,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-02 07:51:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:24,279 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:51:24,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 07:51:24,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:24,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-02 07:51:24,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:51:24,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:25,267 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6562 transitions and produced 6563 states. [2022-03-02 07:51:25,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:25,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-02 07:51:25,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:51:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:51:25,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-02 07:51:25,268 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 07:51:25,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 07:51:25,268 INFO L85 PathProgramCache]: Analyzing trace with hash 466433845, now seen corresponding path program 4 times [2022-03-02 07:51:25,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 07:51:25,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840542767] [2022-03-02 07:51:25,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 07:51:25,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 07:51:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 07:51:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 07:51:25,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 07:51:25,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840542767] [2022-03-02 07:51:25,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840542767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 07:51:25,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 07:51:25,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-02 07:51:25,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574019548] [2022-03-02 07:51:25,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 07:51:25,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-02 07:51:25,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 07:51:25,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-02 07:51:25,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-02 07:51:25,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:25,409 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 07:51:25,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 07:51:25,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 07:51:25,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-03-02 07:51:25,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:51:25,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-03-02 07:51:25,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.