/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-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 05:23:49,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 05:23:49,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 05:23:49,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 05:23:49,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 05:23:49,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 05:23:49,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 05:23:49,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 05:23:49,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 05:23:49,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 05:23:49,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 05:23:49,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 05:23:49,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 05:23:49,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 05:23:49,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 05:23:49,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 05:23:49,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 05:23:49,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 05:23:49,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 05:23:49,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 05:23:49,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 05:23:49,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 05:23:49,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 05:23:49,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 05:23:49,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 05:23:49,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 05:23:49,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 05:23:49,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 05:23:49,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 05:23:49,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 05:23:49,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 05:23:49,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 05:23:49,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 05:23:49,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 05:23:49,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 05:23:49,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 05:23:49,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 05:23:49,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 05:23:49,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 05:23:49,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 05:23:49,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 05:23:49,864 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-PN-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 05:23:49,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 05:23:49,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 05:23:49,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 05:23:49,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 05:23:49,898 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 05:23:49,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 05:23:49,899 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 05:23:49,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 05:23:49,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 05:23:49,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 05:23:49,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 05:23:49,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 05:23:49,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 05:23:49,901 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 05:23:49,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 05:23:49,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 05:23:49,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 05:23:49,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 05:23:49,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 05:23:49,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 05:23:49,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 05:23:49,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:23:49,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 05:23:49,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 05:23:49,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 05:23:49,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 05:23:49,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 05:23:49,903 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 05:23:49,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 05:23:50,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 05:23:50,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 05:23:50,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 05:23:50,259 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 05:23:50,259 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 05:23:50,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-06 05:23:51,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 05:23:51,524 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 05:23:51,524 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c [2022-12-06 05:23:51,530 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0110d533/2384bcc84eca472199a7d8645448b599/FLAG5e1e2393e [2022-12-06 05:23:51,544 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0110d533/2384bcc84eca472199a7d8645448b599 [2022-12-06 05:23:51,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 05:23:51,547 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 05:23:51,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 05:23:51,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 05:23:51,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 05:23:51,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e66997e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51, skipping insertion in model container [2022-12-06 05:23:51,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 05:23:51,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 05:23:51,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:23:51,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:23:51,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:23:51,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:23:51,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:23:51,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:23:51,768 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-12-06 05:23:51,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:23:51,790 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 05:23:51,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:23:51,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:23:51,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:23:51,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:23:51,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:23:51,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:23:51,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product-alt.wvr.c[3182,3195] [2022-12-06 05:23:51,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:23:51,854 INFO L208 MainTranslator]: Completed translation [2022-12-06 05:23:51,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51 WrapperNode [2022-12-06 05:23:51,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 05:23:51,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 05:23:51,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 05:23:51,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 05:23:51,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,919 INFO L138 Inliner]: procedures = 28, calls = 74, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 362 [2022-12-06 05:23:51,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 05:23:51,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 05:23:51,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 05:23:51,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 05:23:51,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 05:23:51,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 05:23:51,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 05:23:51,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 05:23:51,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (1/1) ... [2022-12-06 05:23:51,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:23:51,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:23:52,009 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) [2022-12-06 05:23:52,017 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 [2022-12-06 05:23:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 05:23:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 05:23:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 05:23:52,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 05:23:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 05:23:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 05:23:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 05:23:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 05:23:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 05:23:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 05:23:52,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 05:23:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 05:23:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 05:23:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 05:23:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 05:23:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 05:23:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 05:23:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 05:23:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 05:23:52,045 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 05:23:52,142 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 05:23:52,143 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 05:23:52,716 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 05:23:52,885 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 05:23:52,885 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-06 05:23:52,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:23:52 BoogieIcfgContainer [2022-12-06 05:23:52,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 05:23:52,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 05:23:52,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 05:23:52,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 05:23:52,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:23:51" (1/3) ... [2022-12-06 05:23:52,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750f5209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:23:52, skipping insertion in model container [2022-12-06 05:23:52,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:23:51" (2/3) ... [2022-12-06 05:23:52,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@750f5209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:23:52, skipping insertion in model container [2022-12-06 05:23:52,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:23:52" (3/3) ... [2022-12-06 05:23:52,897 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2022-12-06 05:23:52,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 05:23:52,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 05:23:52,913 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 05:23:53,007 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 05:23:53,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 323 transitions, 670 flow [2022-12-06 05:23:53,227 INFO L130 PetriNetUnfolder]: 35/320 cut-off events. [2022-12-06 05:23:53,227 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:23:53,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 320 events. 35/320 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 621 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-06 05:23:53,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 323 transitions, 670 flow [2022-12-06 05:23:53,245 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 310 transitions, 638 flow [2022-12-06 05:23:53,246 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:23:53,265 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-06 05:23:53,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 310 transitions, 638 flow [2022-12-06 05:23:53,337 INFO L130 PetriNetUnfolder]: 35/310 cut-off events. [2022-12-06 05:23:53,338 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:23:53,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 35/310 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 619 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2022-12-06 05:23:53,353 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 310 transitions, 638 flow [2022-12-06 05:23:53,353 INFO L188 LiptonReduction]: Number of co-enabled transitions 11934 [2022-12-06 05:23:56,289 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:56,290 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:56,293 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:56,294 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,114 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,115 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,117 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,117 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,387 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,388 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,390 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,390 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,431 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,431 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,433 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,434 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,859 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,860 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:57,861 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:57,862 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:59,001 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:59,002 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:59,375 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:59,376 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:23:59,380 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:23:59,381 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:00,373 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:00,376 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:00,378 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:00,378 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:01,040 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:01,041 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:01,043 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:01,043 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:01,105 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:01,106 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:02,182 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:02,183 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:02,185 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:02,186 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:05,240 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:05,241 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:05,243 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:05,243 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:05,568 INFO L203 LiptonReduction]: Total number of compositions: 271 [2022-12-06 05:24:05,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 05:24:05,595 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ab40f3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 05:24:05,595 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 05:24:05,603 INFO L130 PetriNetUnfolder]: 9/39 cut-off events. [2022-12-06 05:24:05,603 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:24:05,603 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:05,604 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:24:05,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:24:05,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:05,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1957612998, now seen corresponding path program 1 times [2022-12-06 05:24:05,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:05,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579114303] [2022-12-06 05:24:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:05,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:24:06,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:06,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579114303] [2022-12-06 05:24:06,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579114303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:06,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:06,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 05:24:06,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10164711] [2022-12-06 05:24:06,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:06,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:24:06,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:06,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:24:06,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 05:24:06,299 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 05:24:06,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:24:06,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:06,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 05:24:06,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:06,634 INFO L130 PetriNetUnfolder]: 1391/1858 cut-off events. [2022-12-06 05:24:06,634 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-12-06 05:24:06,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3831 conditions, 1858 events. 1391/1858 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 7096 event pairs, 721 based on Foata normal form. 0/1164 useless extension candidates. Maximal degree in co-relation 3413. Up to 1821 conditions per place. [2022-12-06 05:24:06,644 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 35 selfloop transitions, 4 changer transitions 7/49 dead transitions. [2022-12-06 05:24:06,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 49 transitions, 208 flow [2022-12-06 05:24:06,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:24:06,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:24:06,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2022-12-06 05:24:06,654 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.32 [2022-12-06 05:24:06,656 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 98 flow. Second operand 5 states and 64 transitions. [2022-12-06 05:24:06,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 49 transitions, 208 flow [2022-12-06 05:24:06,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 49 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 05:24:06,667 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 116 flow [2022-12-06 05:24:06,669 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2022-12-06 05:24:06,671 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2022-12-06 05:24:06,672 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:06,672 INFO L89 Accepts]: Start accepts. Operand has 42 places, 42 transitions, 116 flow [2022-12-06 05:24:06,676 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:06,676 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:06,676 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 42 transitions, 116 flow [2022-12-06 05:24:06,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 42 transitions, 116 flow [2022-12-06 05:24:06,691 INFO L130 PetriNetUnfolder]: 9/42 cut-off events. [2022-12-06 05:24:06,692 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 05:24:06,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 42 events. 9/42 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2022-12-06 05:24:06,693 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 42 transitions, 116 flow [2022-12-06 05:24:06,693 INFO L188 LiptonReduction]: Number of co-enabled transitions 414 [2022-12-06 05:24:06,766 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:24:06,769 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 97 [2022-12-06 05:24:06,769 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 42 transitions, 116 flow [2022-12-06 05:24:06,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:24:06,769 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:06,769 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:24:06,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 05:24:06,770 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:24:06,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:06,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1367876668, now seen corresponding path program 1 times [2022-12-06 05:24:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:06,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484537158] [2022-12-06 05:24:06,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:06,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:24:06,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:06,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484537158] [2022-12-06 05:24:06,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484537158] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:24:06,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657291809] [2022-12-06 05:24:06,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:06,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:24:06,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:24:06,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:24:06,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 05:24:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:07,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 05:24:07,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:24:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:24:07,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:24:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:24:07,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657291809] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 05:24:07,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 05:24:07,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-06 05:24:07,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211741503] [2022-12-06 05:24:07,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:07,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:24:07,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:07,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:24:07,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 05:24:07,163 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 40 [2022-12-06 05:24:07,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 42 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:24:07,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:07,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 40 [2022-12-06 05:24:07,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:07,481 INFO L130 PetriNetUnfolder]: 1577/2098 cut-off events. [2022-12-06 05:24:07,481 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-06 05:24:07,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4270 conditions, 2098 events. 1577/2098 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8363 event pairs, 342 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 4247. Up to 1314 conditions per place. [2022-12-06 05:24:07,493 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2022-12-06 05:24:07,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 58 transitions, 262 flow [2022-12-06 05:24:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:24:07,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:24:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2022-12-06 05:24:07,497 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.33 [2022-12-06 05:24:07,498 INFO L175 Difference]: Start difference. First operand has 40 places, 42 transitions, 116 flow. Second operand 5 states and 66 transitions. [2022-12-06 05:24:07,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 58 transitions, 262 flow [2022-12-06 05:24:07,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 250 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-06 05:24:07,500 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 135 flow [2022-12-06 05:24:07,500 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2022-12-06 05:24:07,501 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-12-06 05:24:07,501 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:07,501 INFO L89 Accepts]: Start accepts. Operand has 43 places, 44 transitions, 135 flow [2022-12-06 05:24:07,503 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:07,503 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:07,503 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 44 transitions, 135 flow [2022-12-06 05:24:07,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 44 transitions, 135 flow [2022-12-06 05:24:07,511 INFO L130 PetriNetUnfolder]: 10/44 cut-off events. [2022-12-06 05:24:07,511 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 05:24:07,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 44 events. 10/44 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 51. Up to 6 conditions per place. [2022-12-06 05:24:07,512 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 44 transitions, 135 flow [2022-12-06 05:24:07,512 INFO L188 LiptonReduction]: Number of co-enabled transitions 478 [2022-12-06 05:24:07,530 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:07,530 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:07,533 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:07,533 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:09,202 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:09,203 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:09,205 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:09,205 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:09,521 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 05:24:09,522 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2021 [2022-12-06 05:24:09,523 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 42 transitions, 125 flow [2022-12-06 05:24:09,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:24:09,523 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:09,523 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:24:09,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-06 05:24:09,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:24:09,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:24:09,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:09,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1859677446, now seen corresponding path program 1 times [2022-12-06 05:24:09,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:09,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763008836] [2022-12-06 05:24:09,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:09,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:24:09,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:09,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763008836] [2022-12-06 05:24:09,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763008836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:09,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:09,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 05:24:09,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347298271] [2022-12-06 05:24:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:09,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 05:24:09,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 05:24:09,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 05:24:09,899 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 40 [2022-12-06 05:24:09,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 42 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:24:09,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:09,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 40 [2022-12-06 05:24:09,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:10,519 INFO L130 PetriNetUnfolder]: 2847/3901 cut-off events. [2022-12-06 05:24:10,519 INFO L131 PetriNetUnfolder]: For 1062/1324 co-relation queries the response was YES. [2022-12-06 05:24:10,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9102 conditions, 3901 events. 2847/3901 cut-off events. For 1062/1324 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16440 event pairs, 802 based on Foata normal form. 262/3371 useless extension candidates. Maximal degree in co-relation 9080. Up to 1671 conditions per place. [2022-12-06 05:24:10,539 INFO L137 encePairwiseOnDemand]: 33/40 looper letters, 104 selfloop transitions, 10 changer transitions 0/115 dead transitions. [2022-12-06 05:24:10,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 115 transitions, 561 flow [2022-12-06 05:24:10,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 05:24:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 05:24:10,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2022-12-06 05:24:10,542 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2022-12-06 05:24:10,542 INFO L175 Difference]: Start difference. First operand has 41 places, 42 transitions, 125 flow. Second operand 7 states and 115 transitions. [2022-12-06 05:24:10,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 115 transitions, 561 flow [2022-12-06 05:24:10,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 115 transitions, 537 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-06 05:24:10,546 INFO L231 Difference]: Finished difference. Result has 47 places, 48 transitions, 166 flow [2022-12-06 05:24:10,546 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=48} [2022-12-06 05:24:10,547 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2022-12-06 05:24:10,547 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:10,548 INFO L89 Accepts]: Start accepts. Operand has 47 places, 48 transitions, 166 flow [2022-12-06 05:24:10,549 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:10,549 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:10,549 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 48 transitions, 166 flow [2022-12-06 05:24:10,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 48 transitions, 166 flow [2022-12-06 05:24:10,562 INFO L130 PetriNetUnfolder]: 23/93 cut-off events. [2022-12-06 05:24:10,563 INFO L131 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2022-12-06 05:24:10,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 93 events. 23/93 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 0 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 115. Up to 12 conditions per place. [2022-12-06 05:24:10,564 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 48 transitions, 166 flow [2022-12-06 05:24:10,564 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 05:24:10,568 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:24:10,572 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 25 [2022-12-06 05:24:10,572 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 166 flow [2022-12-06 05:24:10,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 05:24:10,572 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:10,572 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:24:10,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 05:24:10,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:24:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:10,574 INFO L85 PathProgramCache]: Analyzing trace with hash 437331657, now seen corresponding path program 1 times [2022-12-06 05:24:10,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:10,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314826341] [2022-12-06 05:24:10,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:10,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:24:10,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:10,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314826341] [2022-12-06 05:24:10,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314826341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:10,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:10,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:24:10,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477655728] [2022-12-06 05:24:10,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:10,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:24:10,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:10,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:24:10,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 05:24:10,701 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 05:24:10,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-12-06 05:24:10,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:10,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 05:24:10,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:11,273 INFO L130 PetriNetUnfolder]: 3081/4386 cut-off events. [2022-12-06 05:24:11,274 INFO L131 PetriNetUnfolder]: For 2425/3061 co-relation queries the response was YES. [2022-12-06 05:24:11,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11796 conditions, 4386 events. 3081/4386 cut-off events. For 2425/3061 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 20999 event pairs, 1910 based on Foata normal form. 740/4175 useless extension candidates. Maximal degree in co-relation 7404. Up to 3075 conditions per place. [2022-12-06 05:24:11,297 INFO L137 encePairwiseOnDemand]: 35/40 looper letters, 43 selfloop transitions, 3 changer transitions 29/80 dead transitions. [2022-12-06 05:24:11,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 80 transitions, 413 flow [2022-12-06 05:24:11,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:24:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:24:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2022-12-06 05:24:11,299 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.405 [2022-12-06 05:24:11,299 INFO L175 Difference]: Start difference. First operand has 47 places, 48 transitions, 166 flow. Second operand 5 states and 81 transitions. [2022-12-06 05:24:11,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 80 transitions, 413 flow [2022-12-06 05:24:11,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 80 transitions, 405 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-06 05:24:11,306 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 177 flow [2022-12-06 05:24:11,306 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2022-12-06 05:24:11,307 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2022-12-06 05:24:11,307 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:11,307 INFO L89 Accepts]: Start accepts. Operand has 51 places, 49 transitions, 177 flow [2022-12-06 05:24:11,308 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:11,308 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:11,308 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 177 flow [2022-12-06 05:24:11,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 49 transitions, 177 flow [2022-12-06 05:24:11,335 INFO L130 PetriNetUnfolder]: 22/93 cut-off events. [2022-12-06 05:24:11,335 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-12-06 05:24:11,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 93 events. 22/93 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 1 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 131. Up to 10 conditions per place. [2022-12-06 05:24:11,337 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 49 transitions, 177 flow [2022-12-06 05:24:11,337 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 05:24:11,338 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:24:11,339 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32 [2022-12-06 05:24:11,339 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 49 transitions, 177 flow [2022-12-06 05:24:11,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-12-06 05:24:11,339 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:11,340 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:24:11,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 05:24:11,340 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:24:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash -474845525, now seen corresponding path program 1 times [2022-12-06 05:24:11,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:11,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404534580] [2022-12-06 05:24:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:11,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:24:11,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:11,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404534580] [2022-12-06 05:24:11,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404534580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:11,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:11,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:24:11,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32653853] [2022-12-06 05:24:11,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:11,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 05:24:11,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 05:24:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 05:24:11,539 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 05:24:11,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2022-12-06 05:24:11,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:11,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 05:24:11,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:12,236 INFO L130 PetriNetUnfolder]: 3901/5648 cut-off events. [2022-12-06 05:24:12,236 INFO L131 PetriNetUnfolder]: For 3480/4330 co-relation queries the response was YES. [2022-12-06 05:24:12,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14958 conditions, 5648 events. 3901/5648 cut-off events. For 3480/4330 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 29432 event pairs, 2463 based on Foata normal form. 1194/5628 useless extension candidates. Maximal degree in co-relation 10257. Up to 3078 conditions per place. [2022-12-06 05:24:12,263 INFO L137 encePairwiseOnDemand]: 34/40 looper letters, 41 selfloop transitions, 4 changer transitions 66/116 dead transitions. [2022-12-06 05:24:12,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 116 transitions, 610 flow [2022-12-06 05:24:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:24:12,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:24:12,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2022-12-06 05:24:12,265 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.56 [2022-12-06 05:24:12,265 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 177 flow. Second operand 5 states and 112 transitions. [2022-12-06 05:24:12,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 116 transitions, 610 flow [2022-12-06 05:24:12,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 116 transitions, 601 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-06 05:24:12,300 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 199 flow [2022-12-06 05:24:12,300 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2022-12-06 05:24:12,300 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2022-12-06 05:24:12,301 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:12,301 INFO L89 Accepts]: Start accepts. Operand has 54 places, 50 transitions, 199 flow [2022-12-06 05:24:12,302 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:12,302 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:12,302 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 50 transitions, 199 flow [2022-12-06 05:24:12,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 50 transitions, 199 flow [2022-12-06 05:24:12,314 INFO L130 PetriNetUnfolder]: 22/95 cut-off events. [2022-12-06 05:24:12,314 INFO L131 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2022-12-06 05:24:12,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 95 events. 22/95 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 1 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 136. Up to 10 conditions per place. [2022-12-06 05:24:12,316 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 50 transitions, 199 flow [2022-12-06 05:24:12,316 INFO L188 LiptonReduction]: Number of co-enabled transitions 686 [2022-12-06 05:24:12,321 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:12,322 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:12,324 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:12,325 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 05:24:12,657 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:24:12,658 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 357 [2022-12-06 05:24:12,658 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 195 flow [2022-12-06 05:24:12,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2022-12-06 05:24:12,658 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:12,659 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:24:12,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 05:24:12,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:24:12,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:12,659 INFO L85 PathProgramCache]: Analyzing trace with hash -257706876, now seen corresponding path program 1 times [2022-12-06 05:24:12,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:12,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587756894] [2022-12-06 05:24:12,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:12,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 05:24:12,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:12,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587756894] [2022-12-06 05:24:12,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587756894] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:24:12,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:24:12,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 05:24:12,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029348616] [2022-12-06 05:24:12,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:24:12,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:24:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:24:12,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:24:12,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:24:12,929 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 40 [2022-12-06 05:24:12,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 195 flow. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2022-12-06 05:24:12,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:24:12,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 40 [2022-12-06 05:24:12,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:24:13,558 INFO L130 PetriNetUnfolder]: 3056/4261 cut-off events. [2022-12-06 05:24:13,558 INFO L131 PetriNetUnfolder]: For 3184/3604 co-relation queries the response was YES. [2022-12-06 05:24:13,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11982 conditions, 4261 events. 3056/4261 cut-off events. For 3184/3604 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20198 event pairs, 1361 based on Foata normal form. 510/3774 useless extension candidates. Maximal degree in co-relation 11939. Up to 2887 conditions per place. [2022-12-06 05:24:13,587 INFO L137 encePairwiseOnDemand]: 36/40 looper letters, 57 selfloop transitions, 4 changer transitions 39/105 dead transitions. [2022-12-06 05:24:13,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 105 transitions, 603 flow [2022-12-06 05:24:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:24:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:24:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 97 transitions. [2022-12-06 05:24:13,589 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.485 [2022-12-06 05:24:13,589 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 195 flow. Second operand 5 states and 97 transitions. [2022-12-06 05:24:13,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 105 transitions, 603 flow [2022-12-06 05:24:13,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 105 transitions, 553 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-06 05:24:13,602 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 193 flow [2022-12-06 05:24:13,603 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2022-12-06 05:24:13,603 INFO L294 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2022-12-06 05:24:13,603 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:24:13,604 INFO L89 Accepts]: Start accepts. Operand has 54 places, 51 transitions, 193 flow [2022-12-06 05:24:13,605 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:24:13,605 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:24:13,605 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 51 transitions, 193 flow [2022-12-06 05:24:13,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 193 flow [2022-12-06 05:24:13,616 INFO L130 PetriNetUnfolder]: 21/95 cut-off events. [2022-12-06 05:24:13,617 INFO L131 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2022-12-06 05:24:13,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 95 events. 21/95 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 236 event pairs, 1 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 138. Up to 10 conditions per place. [2022-12-06 05:24:13,618 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 51 transitions, 193 flow [2022-12-06 05:24:13,618 INFO L188 LiptonReduction]: Number of co-enabled transitions 774 [2022-12-06 05:24:14,189 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 05:24:14,190 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 587 [2022-12-06 05:24:14,190 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 189 flow [2022-12-06 05:24:14,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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) [2022-12-06 05:24:14,190 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:24:14,190 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:24:14,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 05:24:14,191 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:24:14,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:24:14,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1893454482, now seen corresponding path program 1 times [2022-12-06 05:24:14,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:24:14,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721920273] [2022-12-06 05:24:14,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:14,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:24:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:24:16,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:24:16,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721920273] [2022-12-06 05:24:16,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721920273] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:24:16,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263569918] [2022-12-06 05:24:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:24:16,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:24:16,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:24:16,825 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) [2022-12-06 05:24:16,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 05:24:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:24:17,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 89 conjunts are in the unsatisfiable core [2022-12-06 05:24:17,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:24:17,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 05:24:17,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-06 05:24:17,226 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-06 05:24:17,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-06 05:24:17,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 05:24:17,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-06 05:24:17,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-06 05:24:17,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:24:17,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-12-06 05:24:17,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 05:24:17,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 05:24:17,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:24:17,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 43 [2022-12-06 05:24:17,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:24:17,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-12-06 05:24:17,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 05:24:17,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:24:17,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2022-12-06 05:24:17,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-06 05:24:17,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 32 [2022-12-06 05:24:17,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 05:24:19,091 INFO L321 Elim1Store]: treesize reduction 161, result has 29.7 percent of original size [2022-12-06 05:24:19,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 150 [2022-12-06 05:24:19,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-06 05:24:19,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 113 [2022-12-06 05:24:19,120 INFO L321 Elim1Store]: treesize reduction 30, result has 18.9 percent of original size [2022-12-06 05:24:19,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 125 treesize of output 91 [2022-12-06 05:24:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 05:24:19,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:24:30,051 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_483 (Array Int Int)) (v_ArrVal_482 (Array Int Int)) (v_ArrVal_485 (Array Int Int)) (~B~0.base Int) (v_ArrVal_484 (Array Int Int)) (v_ArrVal_487 (Array Int Int)) (v_ArrVal_486 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_479 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (~B~0.offset Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_479))) (let ((.cse11 (store .cse0 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_482))) (let ((.cse5 (store .cse11 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_487))) (let ((.cse9 (select .cse5 c_~A~0.base)) (.cse14 (* 4 |thread3Thread1of1ForFork1_~i~2#1|)) (.cse13 (select .cse5 ~B~0.base)) (.cse12 (* |thread1Thread1of1ForFork2_~i~0#1| 4))) (let ((.cse2 (select .cse13 (+ .cse12 ~B~0.offset))) (.cse3 (select .cse9 (+ ~A~0.offset .cse14))) (.cse4 (select .cse13 (+ ~B~0.offset .cse14))) (.cse1 (+ .cse12 ~A~0.offset))) (or (< (select (select .cse0 c_~A~0.base) .cse1) 0) (not (< .cse2 c_~maxB~0)) (not (<= 0 .cse3)) (not (<= 0 .cse2)) (not (<= 0 .cse4)) (let ((.cse6 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_481) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_484) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_485) c_~mult~0.base)) (.cse8 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_480) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_483) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_486) c_~mult~0.base))) (< (+ (let ((.cse7 (+ c_~mult~0.offset (* (select .cse9 .cse1) 4)))) (select (select .cse5 (select .cse6 .cse7)) (+ (select .cse8 .cse7) (* 4 .cse2)))) c_~res1~0) (+ c_~res2~0 1 (let ((.cse10 (+ (* 4 .cse3) c_~mult~0.offset))) (select (select .cse5 (select .cse6 .cse10)) (+ (* .cse4 4) (select .cse8 .cse10))))))) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse3 1)) (not (< .cse4 c_~maxB~0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse11 c_~A~0.base) .cse1) 1))))))))) (forall ((|thread1Thread1of1ForFork2_~i~0#1| Int) (v_ArrVal_481 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (v_ArrVal_483 (Array Int Int)) (v_ArrVal_482 (Array Int Int)) (v_ArrVal_485 (Array Int Int)) (~B~0.base Int) (v_ArrVal_484 (Array Int Int)) (v_ArrVal_487 (Array Int Int)) (v_ArrVal_486 (Array Int Int)) (~A~0.offset Int) (v_ArrVal_479 (Array Int Int)) (|thread3Thread1of1ForFork1_~i~2#1| Int) (~B~0.offset Int)) (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_479))) (let ((.cse26 (store .cse15 |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_482))) (let ((.cse19 (store .cse26 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_487))) (let ((.cse25 (select .cse19 c_~A~0.base)) (.cse29 (* 4 |thread3Thread1of1ForFork1_~i~2#1|)) (.cse28 (select .cse19 ~B~0.base)) (.cse27 (* |thread1Thread1of1ForFork2_~i~0#1| 4))) (let ((.cse17 (select .cse28 (+ .cse27 ~B~0.offset))) (.cse18 (select .cse25 (+ ~A~0.offset .cse29))) (.cse22 (select .cse28 (+ ~B~0.offset .cse29))) (.cse16 (+ .cse27 ~A~0.offset))) (or (< (select (select .cse15 c_~A~0.base) .cse16) 0) (not (< .cse17 c_~maxB~0)) (not (<= 0 .cse18)) (let ((.cse20 (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_481) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_484) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_485) c_~mult~0.base)) (.cse23 (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_480) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_483) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_486) c_~mult~0.base))) (<= (+ c_~res2~0 (let ((.cse21 (+ (* 4 .cse18) c_~mult~0.offset))) (select (select .cse19 (select .cse20 .cse21)) (+ (* .cse22 4) (select .cse23 .cse21))))) (+ (let ((.cse24 (+ c_~mult~0.offset (* (select .cse25 .cse16) 4)))) (select (select .cse19 (select .cse20 .cse24)) (+ (select .cse23 .cse24) (* 4 .cse17)))) c_~res1~0))) (not (<= 0 .cse17)) (not (<= 0 .cse22)) (< |c_ULTIMATE.start_main_~i~3#1| (+ .cse18 1)) (not (< .cse22 c_~maxB~0)) (< |c_ULTIMATE.start_main_~i~3#1| (+ (select (select .cse26 c_~A~0.base) .cse16) 1)))))))))) is different from false [2022-12-06 05:24:30,112 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:30,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 938 treesize of output 903 [2022-12-06 05:24:30,130 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:30,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 890 treesize of output 855 [2022-12-06 05:24:30,240 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:30,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 5734 treesize of output 5998 [2022-12-06 05:24:30,434 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:30,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 300394 treesize of output 290074 [2022-12-06 05:24:30,995 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:30,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 289629 treesize of output 283026 [2022-12-06 05:24:31,307 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:31,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 282973 treesize of output 256402 [2022-12-06 05:24:31,561 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:31,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 256349 treesize of output 243090 [2022-12-06 05:24:31,828 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:31,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 243037 treesize of output 229778 [2022-12-06 05:24:31,957 INFO L208 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2022-12-06 05:24:32,072 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:32,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 229725 treesize of output 203154 [2022-12-06 05:24:32,321 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:32,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 203101 treesize of output 196498 [2022-12-06 05:24:32,615 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:32,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196445 treesize of output 193170 [2022-12-06 05:24:32,955 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:32,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 193117 treesize of output 179858 [2022-12-06 05:24:33,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:33,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 179805 treesize of output 173202 [2022-12-06 05:24:33,551 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:33,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173149 treesize of output 159890 [2022-12-06 05:24:33,847 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:33,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 159837 treesize of output 153234 [2022-12-06 05:24:34,143 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 05:24:34,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 153181 treesize of output 149906 Received shutdown request... [2022-12-06 05:36:50,195 WARN L249 SmtUtils]: Removed 2 from assertion stack [2022-12-06 05:36:50,197 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 05:36:50,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 05:36:50,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 05:36:50,219 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 05:36:50,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-06 05:36:50,404 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 42 for 14ms.. [2022-12-06 05:36:50,406 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 05:36:50,406 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 05:36:50,406 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 05:36:50,407 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-06 05:36:50,409 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 05:36:50,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 05:36:50,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:36:50 BasicIcfg [2022-12-06 05:36:50,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 05:36:50,413 INFO L158 Benchmark]: Toolchain (without parser) took 778865.09ms. Allocated memory was 187.7MB in the beginning and 684.7MB in the end (delta: 497.0MB). Free memory was 164.0MB in the beginning and 303.8MB in the end (delta: -139.8MB). Peak memory consumption was 430.6MB. Max. memory is 8.0GB. [2022-12-06 05:36:50,413 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:36:50,413 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.41ms. Allocated memory is still 187.7MB. Free memory was 164.0MB in the beginning and 150.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 05:36:50,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.33ms. Allocated memory is still 187.7MB. Free memory was 150.4MB in the beginning and 147.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:36:50,414 INFO L158 Benchmark]: Boogie Preprocessor took 58.39ms. Allocated memory is still 187.7MB. Free memory was 147.8MB in the beginning and 145.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 05:36:50,414 INFO L158 Benchmark]: RCFGBuilder took 911.01ms. Allocated memory is still 187.7MB. Free memory was 145.1MB in the beginning and 94.8MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-12-06 05:36:50,414 INFO L158 Benchmark]: TraceAbstraction took 777519.70ms. Allocated memory was 187.7MB in the beginning and 684.7MB in the end (delta: 497.0MB). Free memory was 94.3MB in the beginning and 303.8MB in the end (delta: -209.5MB). Peak memory consumption was 361.4MB. Max. memory is 8.0GB. [2022-12-06 05:36:50,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 187.7MB. Free memory is still 163.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 306.41ms. Allocated memory is still 187.7MB. Free memory was 164.0MB in the beginning and 150.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.33ms. Allocated memory is still 187.7MB. Free memory was 150.4MB in the beginning and 147.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.39ms. Allocated memory is still 187.7MB. Free memory was 147.8MB in the beginning and 145.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 911.01ms. Allocated memory is still 187.7MB. Free memory was 145.1MB in the beginning and 94.8MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * TraceAbstraction took 777519.70ms. Allocated memory was 187.7MB in the beginning and 684.7MB in the end (delta: 497.0MB). Free memory was 94.3MB in the beginning and 303.8MB in the end (delta: -209.5MB). Peak memory consumption was 361.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.2s, 285 PlacesBefore, 41 PlacesAfterwards, 310 TransitionsBefore, 40 TransitionsAfterwards, 11934 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 147 TrivialYvCompositions, 97 ConcurrentYvCompositions, 26 ChoiceCompositions, 271 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 7837, independent unconditional: 0, dependent: 64, dependent conditional: 64, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7901, independent: 7837, independent conditional: 0, independent unconditional: 7837, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7168, independent: 7128, independent conditional: 0, independent unconditional: 7128, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7168, independent: 7127, independent conditional: 0, independent unconditional: 7127, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 114, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7901, independent: 709, independent conditional: 0, independent unconditional: 709, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 7168, unknown conditional: 0, unknown unconditional: 7168] , Statistics on independence cache: Total cache size (in pairs): 13302, Positive cache size: 13262, Positive conditional cache size: 0, Positive unconditional cache size: 13262, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 40 PlacesBefore, 40 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 414 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 130, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 150, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 128, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 128, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 150, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 128, unknown conditional: 0, unknown unconditional: 128] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 43 PlacesBefore, 41 PlacesAfterwards, 44 TransitionsBefore, 42 TransitionsAfterwards, 478 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 398, independent unconditional: 0, dependent: 52, dependent conditional: 52, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 114, independent unconditional: 284, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 450, independent: 398, independent conditional: 96, independent unconditional: 302, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 450, independent: 398, independent conditional: 96, independent unconditional: 302, dependent: 52, dependent conditional: 12, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, independent: 20, independent conditional: 3, independent unconditional: 17, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 450, independent: 378, independent conditional: 93, independent unconditional: 285, dependent: 49, dependent conditional: 9, dependent unconditional: 40, unknown: 23, unknown conditional: 6, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 130, Positive conditional cache size: 3, Positive unconditional cache size: 127, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 226, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 96, independent unconditional: 130, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 248, independent: 226, independent conditional: 86, independent unconditional: 140, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 130, Positive conditional cache size: 3, Positive unconditional cache size: 127, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 10, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 50 PlacesBefore, 50 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 238, independent unconditional: 0, dependent: 22, dependent conditional: 22, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 108, independent unconditional: 130, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 260, independent: 238, independent conditional: 90, independent unconditional: 148, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 260, independent: 238, independent conditional: 90, independent unconditional: 148, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 4, independent unconditional: 5, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 260, independent: 229, independent conditional: 86, independent unconditional: 143, dependent: 22, dependent conditional: 2, dependent unconditional: 20, unknown: 9, unknown conditional: 4, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 139, Positive conditional cache size: 7, Positive unconditional cache size: 132, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 53 PlacesBefore, 52 PlacesAfterwards, 50 TransitionsBefore, 49 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 496, independent unconditional: 0, dependent: 44, dependent conditional: 44, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 236, independent unconditional: 260, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 540, independent: 496, independent conditional: 200, independent unconditional: 296, dependent: 44, dependent conditional: 4, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 139, Positive conditional cache size: 7, Positive unconditional cache size: 132, Negative cache size: 21, Negative conditional cache size: 3, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6s, 54 PlacesBefore, 52 PlacesAfterwards, 51 TransitionsBefore, 49 TransitionsAfterwards, 774 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 534, independent unconditional: 0, dependent: 44, dependent conditional: 44, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 289, independent unconditional: 245, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 578, independent: 534, independent conditional: 253, independent unconditional: 281, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 578, independent: 534, independent conditional: 253, independent unconditional: 281, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, independent: 28, independent conditional: 20, independent unconditional: 8, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 4, independent unconditional: 0, dependent: 2, dependent conditional: 1, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 11, independent conditional: 11, independent unconditional: 0, dependent: 4, dependent conditional: 2, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 578, independent: 506, independent conditional: 233, independent unconditional: 273, dependent: 42, dependent conditional: 4, dependent unconditional: 38, unknown: 30, unknown conditional: 21, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 187, Positive conditional cache size: 27, Positive unconditional cache size: 160, Negative cache size: 23, Negative conditional cache size: 4, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0 - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 42 for 14ms.. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 42 for 14ms.. - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 42 for 14ms.. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was analyzing trace of length 31 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 42 for 14ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 394 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 777.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 344 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 344 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 866 IncrementalHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 3 mSDtfsCounter, 866 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 401 SizeOfPredicates, 4 NumberOfNonLiveVariables, 328 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 13/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown