/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:26:49,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:26:49,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:26:49,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:26:49,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:26:49,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:26:49,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:26:49,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:26:49,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:26:49,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:26:49,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:26:49,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:26:49,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:26:49,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:26:49,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:26:49,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:26:49,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:26:49,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:26:49,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:26:49,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:26:49,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:26:49,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:26:49,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:26:49,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:26:49,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:26:49,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:26:49,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:26:49,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:26:49,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:26:49,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:26:49,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:26:49,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:26:49,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:26:49,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:26:49,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:26:49,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:26:49,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:26:49,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:26:49,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:26:49,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:26:49,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:26:49,105 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-RepeatedSemanticLbe.epf [2022-12-06 00:26:49,126 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:26:49,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:26:49,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:26:49,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:26:49,128 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:26:49,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:26:49,136 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:26:49,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:26:49,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:26:49,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:26:49,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:26:49,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:26:49,139 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:26:49,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 00:26:49,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:26:49,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:26:49,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:26:49,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:26:49,386 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:26:49,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-12-06 00:26:50,371 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:26:50,555 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:26:50,557 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-12-06 00:26:50,562 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b370c25d0/3cdbbf208c4a4c19a8433a1db4cd562f/FLAG6ea408c70 [2022-12-06 00:26:50,578 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b370c25d0/3cdbbf208c4a4c19a8433a1db4cd562f [2022-12-06 00:26:50,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:26:50,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:26:50,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:26:50,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:26:50,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:26:50,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417f7f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50, skipping insertion in model container [2022-12-06 00:26:50,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:26:50,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:26:50,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:50,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:50,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:50,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:50,736 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:50,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:50,752 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-three-array-sum.wvr.c[2691,2704] [2022-12-06 00:26:50,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:26:50,771 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:26:50,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:50,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:50,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:50,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:50,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:26:50,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:26:50,804 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-three-array-sum.wvr.c[2691,2704] [2022-12-06 00:26:50,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:26:50,815 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:26:50,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50 WrapperNode [2022-12-06 00:26:50,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:26:50,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:26:50,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:26:50,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:26:50,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,849 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 150 [2022-12-06 00:26:50,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:26:50,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:26:50,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:26:50,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:26:50,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,880 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:26:50,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:26:50,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:26:50,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:26:50,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (1/1) ... [2022-12-06 00:26:50,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:26:50,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:26:50,906 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 00:26:50,912 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 00:26:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:26:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:26:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:26:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:26:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:26:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:26:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 00:26:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:26:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:26:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:26:50,931 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 00:26:50,996 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:26:50,998 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:26:51,313 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:26:51,355 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:26:51,355 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-06 00:26:51,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:26:51 BoogieIcfgContainer [2022-12-06 00:26:51,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:26:51,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:26:51,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:26:51,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:26:51,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:26:50" (1/3) ... [2022-12-06 00:26:51,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c7aef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:26:51, skipping insertion in model container [2022-12-06 00:26:51,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:26:50" (2/3) ... [2022-12-06 00:26:51,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c7aef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:26:51, skipping insertion in model container [2022-12-06 00:26:51,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:26:51" (3/3) ... [2022-12-06 00:26:51,369 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2022-12-06 00:26:51,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:26:51,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:26:51,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:26:51,478 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 00:26:51,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 208 transitions, 440 flow [2022-12-06 00:26:51,565 INFO L130 PetriNetUnfolder]: 20/205 cut-off events. [2022-12-06 00:26:51,565 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:26:51,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 205 events. 20/205 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 143 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 166. Up to 3 conditions per place. [2022-12-06 00:26:51,572 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 208 transitions, 440 flow [2022-12-06 00:26:51,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 195 transitions, 408 flow [2022-12-06 00:26:51,584 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:51,601 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 195 transitions, 408 flow [2022-12-06 00:26:51,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 195 transitions, 408 flow [2022-12-06 00:26:51,645 INFO L130 PetriNetUnfolder]: 20/195 cut-off events. [2022-12-06 00:26:51,645 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:26:51,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 195 events. 20/195 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 142 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 166. Up to 3 conditions per place. [2022-12-06 00:26:51,649 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 195 transitions, 408 flow [2022-12-06 00:26:51,649 INFO L188 LiptonReduction]: Number of co-enabled transitions 1874 [2022-12-06 00:26:57,932 INFO L203 LiptonReduction]: Total number of compositions: 164 [2022-12-06 00:26:57,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:26:57,946 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;@56e6de22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:26:57,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 00:26:57,951 INFO L130 PetriNetUnfolder]: 7/30 cut-off events. [2022-12-06 00:26:57,951 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:26:57,951 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:57,952 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 00:26:57,952 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 00:26:57,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:57,955 INFO L85 PathProgramCache]: Analyzing trace with hash -959111054, now seen corresponding path program 1 times [2022-12-06 00:26:57,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:57,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350908770] [2022-12-06 00:26:57,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:57,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:58,353 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 00:26:58,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:58,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350908770] [2022-12-06 00:26:58,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350908770] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:58,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:58,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 00:26:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591453589] [2022-12-06 00:26:58,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:58,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 00:26:58,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:58,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 00:26:58,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 00:26:58,373 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 31 [2022-12-06 00:26:58,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 00:26:58,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:58,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 31 [2022-12-06 00:26:58,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:58,500 INFO L130 PetriNetUnfolder]: 739/989 cut-off events. [2022-12-06 00:26:58,500 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2022-12-06 00:26:58,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 989 events. 739/989 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3495 event pairs, 116 based on Foata normal form. 1/577 useless extension candidates. Maximal degree in co-relation 1509. Up to 667 conditions per place. [2022-12-06 00:26:58,506 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 42 selfloop transitions, 3 changer transitions 1/49 dead transitions. [2022-12-06 00:26:58,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 49 transitions, 223 flow [2022-12-06 00:26:58,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 00:26:58,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 00:26:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-12-06 00:26:58,515 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2022-12-06 00:26:58,516 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 80 flow. Second operand 3 states and 56 transitions. [2022-12-06 00:26:58,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 49 transitions, 223 flow [2022-12-06 00:26:58,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 49 transitions, 201 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 00:26:58,520 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 87 flow [2022-12-06 00:26:58,521 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2022-12-06 00:26:58,523 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2022-12-06 00:26:58,524 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:58,524 INFO L89 Accepts]: Start accepts. Operand has 31 places, 33 transitions, 87 flow [2022-12-06 00:26:58,526 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:58,526 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:58,526 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 33 transitions, 87 flow [2022-12-06 00:26:58,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 33 transitions, 87 flow [2022-12-06 00:26:58,533 INFO L130 PetriNetUnfolder]: 14/51 cut-off events. [2022-12-06 00:26:58,533 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 00:26:58,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 51 events. 14/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2022-12-06 00:26:58,534 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 33 transitions, 87 flow [2022-12-06 00:26:58,534 INFO L188 LiptonReduction]: Number of co-enabled transitions 256 [2022-12-06 00:26:58,540 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:26:58,542 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-06 00:26:58,542 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 87 flow [2022-12-06 00:26:58,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 00:26:58,542 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:58,543 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 00:26:58,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:26:58,552 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 00:26:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:58,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1486541656, now seen corresponding path program 1 times [2022-12-06 00:26:58,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:58,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178356060] [2022-12-06 00:26:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:58,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:58,661 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 00:26:58,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:58,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178356060] [2022-12-06 00:26:58,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178356060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:58,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:58,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:26:58,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086219190] [2022-12-06 00:26:58,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:58,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:26:58,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:58,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:26:58,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:26:58,663 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 31 [2022-12-06 00:26:58,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 87 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 00:26:58,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:58,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 31 [2022-12-06 00:26:58,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:58,846 INFO L130 PetriNetUnfolder]: 1043/1481 cut-off events. [2022-12-06 00:26:58,846 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-12-06 00:26:58,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3263 conditions, 1481 events. 1043/1481 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6121 event pairs, 438 based on Foata normal form. 0/1124 useless extension candidates. Maximal degree in co-relation 1048. Up to 911 conditions per place. [2022-12-06 00:26:58,853 INFO L137 encePairwiseOnDemand]: 21/31 looper letters, 60 selfloop transitions, 10 changer transitions 0/72 dead transitions. [2022-12-06 00:26:58,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 72 transitions, 325 flow [2022-12-06 00:26:58,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:26:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:26:58,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2022-12-06 00:26:58,856 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2022-12-06 00:26:58,856 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 87 flow. Second operand 5 states and 80 transitions. [2022-12-06 00:26:58,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 72 transitions, 325 flow [2022-12-06 00:26:58,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 72 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 00:26:58,858 INFO L231 Difference]: Finished difference. Result has 37 places, 41 transitions, 154 flow [2022-12-06 00:26:58,858 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=37, PETRI_TRANSITIONS=41} [2022-12-06 00:26:58,859 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2022-12-06 00:26:58,859 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:58,859 INFO L89 Accepts]: Start accepts. Operand has 37 places, 41 transitions, 154 flow [2022-12-06 00:26:58,860 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:58,860 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:58,861 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 41 transitions, 154 flow [2022-12-06 00:26:58,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 41 transitions, 154 flow [2022-12-06 00:26:58,869 INFO L130 PetriNetUnfolder]: 18/87 cut-off events. [2022-12-06 00:26:58,869 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 00:26:58,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 87 events. 18/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 239 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 102. Up to 13 conditions per place. [2022-12-06 00:26:58,871 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 41 transitions, 154 flow [2022-12-06 00:26:58,871 INFO L188 LiptonReduction]: Number of co-enabled transitions 282 [2022-12-06 00:26:58,872 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:26:58,873 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-06 00:26:58,874 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 41 transitions, 154 flow [2022-12-06 00:26:58,874 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 00:26:58,874 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:58,874 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 00:26:58,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 00:26:58,874 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 00:26:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:58,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1535348125, now seen corresponding path program 1 times [2022-12-06 00:26:58,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:58,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963398711] [2022-12-06 00:26:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:58,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:58,997 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 00:26:58,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:58,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963398711] [2022-12-06 00:26:58,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963398711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:26:58,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:26:58,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:26:58,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509560054] [2022-12-06 00:26:58,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:58,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:26:58,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:58,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:26:58,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:26:58,998 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 31 [2022-12-06 00:26:58,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 41 transitions, 154 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 00:26:58,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:58,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 31 [2022-12-06 00:26:58,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:59,146 INFO L130 PetriNetUnfolder]: 882/1248 cut-off events. [2022-12-06 00:26:59,146 INFO L131 PetriNetUnfolder]: For 175/198 co-relation queries the response was YES. [2022-12-06 00:26:59,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2864 conditions, 1248 events. 882/1248 cut-off events. For 175/198 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4828 event pairs, 418 based on Foata normal form. 43/969 useless extension candidates. Maximal degree in co-relation 2370. Up to 1008 conditions per place. [2022-12-06 00:26:59,151 INFO L137 encePairwiseOnDemand]: 22/31 looper letters, 28 selfloop transitions, 6 changer transitions 30/66 dead transitions. [2022-12-06 00:26:59,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 66 transitions, 340 flow [2022-12-06 00:26:59,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:26:59,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:26:59,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2022-12-06 00:26:59,152 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4645161290322581 [2022-12-06 00:26:59,153 INFO L175 Difference]: Start difference. First operand has 37 places, 41 transitions, 154 flow. Second operand 5 states and 72 transitions. [2022-12-06 00:26:59,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 66 transitions, 340 flow [2022-12-06 00:26:59,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 66 transitions, 340 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 00:26:59,154 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 142 flow [2022-12-06 00:26:59,155 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2022-12-06 00:26:59,155 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2022-12-06 00:26:59,155 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:59,155 INFO L89 Accepts]: Start accepts. Operand has 43 places, 36 transitions, 142 flow [2022-12-06 00:26:59,156 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:59,156 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:59,156 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 36 transitions, 142 flow [2022-12-06 00:26:59,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 36 transitions, 142 flow [2022-12-06 00:26:59,161 INFO L130 PetriNetUnfolder]: 14/54 cut-off events. [2022-12-06 00:26:59,161 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 00:26:59,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 54 events. 14/54 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 71. Up to 10 conditions per place. [2022-12-06 00:26:59,162 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 36 transitions, 142 flow [2022-12-06 00:26:59,162 INFO L188 LiptonReduction]: Number of co-enabled transitions 256 [2022-12-06 00:26:59,162 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:26:59,163 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 8 [2022-12-06 00:26:59,163 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 142 flow [2022-12-06 00:26:59,163 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 00:26:59,163 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:26:59,163 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 00:26:59,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 00:26:59,163 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 00:26:59,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:26:59,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1476160009, now seen corresponding path program 1 times [2022-12-06 00:26:59,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:26:59,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772502806] [2022-12-06 00:26:59,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:59,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:26:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:26:59,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:26:59,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772502806] [2022-12-06 00:26:59,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772502806] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:26:59,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137669524] [2022-12-06 00:26:59,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:26:59,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:26:59,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:26:59,255 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 00:26:59,307 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 00:26:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:26:59,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 00:26:59,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:26:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:26:59,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:26:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:26:59,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137669524] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 00:26:59,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 00:26:59,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-06 00:26:59,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852469055] [2022-12-06 00:26:59,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:26:59,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:26:59,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:26:59,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:26:59,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 00:26:59,451 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 31 [2022-12-06 00:26:59,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 00:26:59,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:26:59,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 31 [2022-12-06 00:26:59,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:26:59,603 INFO L130 PetriNetUnfolder]: 855/1180 cut-off events. [2022-12-06 00:26:59,603 INFO L131 PetriNetUnfolder]: For 319/319 co-relation queries the response was YES. [2022-12-06 00:26:59,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 1180 events. 855/1180 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4367 event pairs, 237 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 2822. Up to 884 conditions per place. [2022-12-06 00:26:59,608 INFO L137 encePairwiseOnDemand]: 26/31 looper letters, 45 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2022-12-06 00:26:59,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 286 flow [2022-12-06 00:26:59,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:26:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:26:59,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-06 00:26:59,611 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.34838709677419355 [2022-12-06 00:26:59,611 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 142 flow. Second operand 5 states and 54 transitions. [2022-12-06 00:26:59,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 286 flow [2022-12-06 00:26:59,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 248 flow, removed 10 selfloop flow, removed 7 redundant places. [2022-12-06 00:26:59,615 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 126 flow [2022-12-06 00:26:59,615 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2022-12-06 00:26:59,616 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2022-12-06 00:26:59,616 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:26:59,616 INFO L89 Accepts]: Start accepts. Operand has 37 places, 37 transitions, 126 flow [2022-12-06 00:26:59,617 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:26:59,617 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:26:59,617 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions, 126 flow [2022-12-06 00:26:59,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions, 126 flow [2022-12-06 00:26:59,622 INFO L130 PetriNetUnfolder]: 14/55 cut-off events. [2022-12-06 00:26:59,622 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 00:26:59,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 55 events. 14/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 66. Up to 10 conditions per place. [2022-12-06 00:26:59,623 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 37 transitions, 126 flow [2022-12-06 00:26:59,623 INFO L188 LiptonReduction]: Number of co-enabled transitions 288 [2022-12-06 00:27:00,810 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 00:27:00,810 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1194 [2022-12-06 00:27:00,810 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 116 flow [2022-12-06 00:27:00,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 00:27:00,811 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:27:00,811 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 00:27:00,828 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 00:27:01,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:27:01,012 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 00:27:01,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:27:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1662202074, now seen corresponding path program 1 times [2022-12-06 00:27:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:27:01,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892983192] [2022-12-06 00:27:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:27:01,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:27:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:27:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:27:01,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:27:01,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892983192] [2022-12-06 00:27:01,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892983192] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:27:01,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:27:01,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 00:27:01,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752147876] [2022-12-06 00:27:01,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:27:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:27:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:27:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:27:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 00:27:01,094 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 00:27:01,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 00:27:01,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:27:01,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 00:27:01,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:27:01,191 INFO L130 PetriNetUnfolder]: 701/984 cut-off events. [2022-12-06 00:27:01,191 INFO L131 PetriNetUnfolder]: For 422/422 co-relation queries the response was YES. [2022-12-06 00:27:01,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2500 conditions, 984 events. 701/984 cut-off events. For 422/422 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3353 event pairs, 246 based on Foata normal form. 0/787 useless extension candidates. Maximal degree in co-relation 2465. Up to 639 conditions per place. [2022-12-06 00:27:01,195 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 45 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2022-12-06 00:27:01,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 260 flow [2022-12-06 00:27:01,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:27:01,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:27:01,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2022-12-06 00:27:01,196 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3951612903225806 [2022-12-06 00:27:01,196 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 116 flow. Second operand 4 states and 49 transitions. [2022-12-06 00:27:01,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 260 flow [2022-12-06 00:27:01,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 236 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-12-06 00:27:01,198 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 119 flow [2022-12-06 00:27:01,198 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2022-12-06 00:27:01,198 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2022-12-06 00:27:01,198 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:27:01,198 INFO L89 Accepts]: Start accepts. Operand has 36 places, 36 transitions, 119 flow [2022-12-06 00:27:01,199 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:27:01,199 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:27:01,199 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 36 transitions, 119 flow [2022-12-06 00:27:01,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 36 transitions, 119 flow [2022-12-06 00:27:01,203 INFO L130 PetriNetUnfolder]: 13/50 cut-off events. [2022-12-06 00:27:01,203 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 00:27:01,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 50 events. 13/50 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 61. Up to 9 conditions per place. [2022-12-06 00:27:01,204 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 36 transitions, 119 flow [2022-12-06 00:27:01,204 INFO L188 LiptonReduction]: Number of co-enabled transitions 274 [2022-12-06 00:27:01,207 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 00:27:01,208 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:27:01,208 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 00:27:01,208 INFO L89 Accepts]: Start accepts. Operand has 36 places, 34 transitions, 105 flow [2022-12-06 00:27:01,209 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:27:01,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 00:27:01,209 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 00:27:01,211 INFO L158 Benchmark]: Toolchain (without parser) took 10630.55ms. Allocated memory was 227.5MB in the beginning and 361.8MB in the end (delta: 134.2MB). Free memory was 203.4MB in the beginning and 162.9MB in the end (delta: 40.6MB). Peak memory consumption was 175.8MB. Max. memory is 8.0GB. [2022-12-06 00:27:01,211 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 227.5MB. Free memory is still 205.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:27:01,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.23ms. Allocated memory is still 227.5MB. Free memory was 203.4MB in the beginning and 190.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-06 00:27:01,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.22ms. Allocated memory is still 227.5MB. Free memory was 190.3MB in the beginning and 188.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 00:27:01,212 INFO L158 Benchmark]: Boogie Preprocessor took 33.50ms. Allocated memory is still 227.5MB. Free memory was 188.8MB in the beginning and 186.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:27:01,212 INFO L158 Benchmark]: RCFGBuilder took 473.60ms. Allocated memory is still 227.5MB. Free memory was 186.7MB in the beginning and 165.2MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 00:27:01,212 INFO L158 Benchmark]: TraceAbstraction took 9852.07ms. Allocated memory was 227.5MB in the beginning and 361.8MB in the end (delta: 134.2MB). Free memory was 164.1MB in the beginning and 162.9MB in the end (delta: 1.2MB). Peak memory consumption was 136.0MB. Max. memory is 8.0GB. [2022-12-06 00:27:01,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 227.5MB. Free memory is still 205.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.23ms. Allocated memory is still 227.5MB. Free memory was 203.4MB in the beginning and 190.3MB in the end (delta: 13.1MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.22ms. Allocated memory is still 227.5MB. Free memory was 190.3MB in the beginning and 188.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.50ms. Allocated memory is still 227.5MB. Free memory was 188.8MB in the beginning and 186.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 473.60ms. Allocated memory is still 227.5MB. Free memory was 186.7MB in the beginning and 165.2MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 9852.07ms. Allocated memory was 227.5MB in the beginning and 361.8MB in the end (delta: 134.2MB). Free memory was 164.1MB in the beginning and 162.9MB in the end (delta: 1.2MB). Peak memory consumption was 136.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 185 PlacesBefore, 34 PlacesAfterwards, 195 TransitionsBefore, 31 TransitionsAfterwards, 1874 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 116 TrivialYvCompositions, 35 ConcurrentYvCompositions, 13 ChoiceCompositions, 164 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1092, independent: 1072, independent conditional: 1072, 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: 1092, independent: 1072, independent conditional: 0, independent unconditional: 1072, 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: 1092, independent: 1072, independent conditional: 0, independent unconditional: 1072, 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: 1092, independent: 1072, independent conditional: 0, independent unconditional: 1072, 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: 1017, independent: 1002, independent conditional: 0, independent unconditional: 1002, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1017, independent: 1002, independent conditional: 0, independent unconditional: 1002, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1092, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 1017, unknown conditional: 0, unknown unconditional: 1017] , Statistics on independence cache: Total cache size (in pairs): 1635, Positive cache size: 1620, Positive conditional cache size: 0, Positive unconditional cache size: 1620, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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: 0.0s, 31 PlacesBefore, 31 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 9, unknown conditional: 1, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 7, Positive conditional cache size: 1, Positive unconditional cache size: 6, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18, independent: 15, independent conditional: 1, independent unconditional: 14, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, independent: 15, independent conditional: 1, independent unconditional: 14, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, independent: 15, independent conditional: 1, independent unconditional: 14, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, 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: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 18, independent: 10, independent conditional: 1, independent unconditional: 9, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 12, Positive conditional cache size: 1, Positive unconditional cache size: 11, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 39 PlacesBefore, 39 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, 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: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 12, Positive conditional cache size: 1, Positive unconditional cache size: 11, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: 1.2s, 37 PlacesBefore, 35 PlacesAfterwards, 37 TransitionsBefore, 35 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, independent: 22, independent conditional: 22, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28, independent: 22, independent conditional: 16, independent unconditional: 6, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 28, independent: 22, independent conditional: 7, independent unconditional: 15, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28, independent: 22, independent conditional: 7, independent unconditional: 15, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, independent: 16, independent conditional: 7, independent unconditional: 9, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 18, unknown conditional: 9, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 28, Positive conditional cache size: 8, Positive unconditional cache size: 20, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 36 TransitionsBefore, 34 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 36, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 28, independent unconditional: 8, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 42, independent: 36, independent conditional: 14, independent unconditional: 22, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 14, independent unconditional: 22, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 12, independent conditional: 5, independent unconditional: 7, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, independent: 24, independent conditional: 9, independent unconditional: 15, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 13, unknown conditional: 5, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 40, Positive conditional cache size: 13, Positive unconditional cache size: 27, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 00:27:01,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...