/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:51:15,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:51:15,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:51:15,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:51:15,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:51:15,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:51:15,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:51:15,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:51:15,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:51:15,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:51:15,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:51:15,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:51:15,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:51:15,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:51:15,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:51:15,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:51:15,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:51:15,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:51:15,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:51:15,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:51:15,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:51:15,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:51:15,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:51:15,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:51:15,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:51:15,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:51:15,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:51:15,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:51:15,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:51:15,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:51:15,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:51:15,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:51:15,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:51:15,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:51:15,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:51:15,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:51:15,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:51:15,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:51:15,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:51:15,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:51:15,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:51:15,952 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 07:51:15,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:51:15,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:51:15,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:51:15,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:51:15,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:51:15,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:51:15,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:51:15,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:51:15,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:51:15,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:51:15,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:51:15,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:51:15,990 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:51:15,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:51:16,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:51:16,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:51:16,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:51:16,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:51:16,275 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:51:16,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2022-12-06 07:51:17,358 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:51:17,564 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:51:17,564 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive-alt.wvr.c [2022-12-06 07:51:17,570 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed68be3f6/c5c61717907041ab85965ee239c87b7c/FLAG1390c20a8 [2022-12-06 07:51:17,595 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed68be3f6/c5c61717907041ab85965ee239c87b7c [2022-12-06 07:51:17,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:51:17,598 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:51:17,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:51:17,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:51:17,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:51:17,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f8ce53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17, skipping insertion in model container [2022-12-06 07:51:17,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:51:17,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:51:17,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:51:17,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:51:17,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:51:17,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:51:17,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:51:17,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:51:17,756 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-send-receive-alt.wvr.c[2650,2663] [2022-12-06 07:51:17,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:51:17,778 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:51:17,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:51:17,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:51:17,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:51:17,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:51:17,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:51:17,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:51:17,809 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-send-receive-alt.wvr.c[2650,2663] [2022-12-06 07:51:17,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:51:17,824 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:51:17,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17 WrapperNode [2022-12-06 07:51:17,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:51:17,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:51:17,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:51:17,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:51:17,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,867 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 142 [2022-12-06 07:51:17,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:51:17,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:51:17,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:51:17,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:51:17,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:51:17,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:51:17,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:51:17,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:51:17,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (1/1) ... [2022-12-06 07:51:17,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:51:17,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:51:17,930 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 07:51:17,948 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 07:51:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:51:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 07:51:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 07:51:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 07:51:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 07:51:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:51:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:51:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:51:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 07:51:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 07:51:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 07:51:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:51:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:51:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:51:17,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:51:17,961 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 07:51:18,040 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:51:18,042 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:51:18,260 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:51:18,326 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:51:18,326 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-06 07:51:18,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:51:18 BoogieIcfgContainer [2022-12-06 07:51:18,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:51:18,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:51:18,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:51:18,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:51:18,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:51:17" (1/3) ... [2022-12-06 07:51:18,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa58559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:51:18, skipping insertion in model container [2022-12-06 07:51:18,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:51:17" (2/3) ... [2022-12-06 07:51:18,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa58559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:51:18, skipping insertion in model container [2022-12-06 07:51:18,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:51:18" (3/3) ... [2022-12-06 07:51:18,338 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-send-receive-alt.wvr.c [2022-12-06 07:51:18,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:51:18,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:51:18,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:51:18,417 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 07:51:18,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 122 transitions, 260 flow [2022-12-06 07:51:18,494 INFO L130 PetriNetUnfolder]: 11/120 cut-off events. [2022-12-06 07:51:18,494 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:51:18,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 120 events. 11/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-12-06 07:51:18,498 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 122 transitions, 260 flow [2022-12-06 07:51:18,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 112 transitions, 236 flow [2022-12-06 07:51:18,502 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:18,513 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 112 transitions, 236 flow [2022-12-06 07:51:18,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 112 transitions, 236 flow [2022-12-06 07:51:18,550 INFO L130 PetriNetUnfolder]: 11/112 cut-off events. [2022-12-06 07:51:18,550 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:51:18,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 112 events. 11/112 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-12-06 07:51:18,553 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 112 transitions, 236 flow [2022-12-06 07:51:18,553 INFO L188 LiptonReduction]: Number of co-enabled transitions 704 [2022-12-06 07:51:22,430 INFO L203 LiptonReduction]: Total number of compositions: 96 [2022-12-06 07:51:22,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:51:22,448 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;@1f81a466, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:51:22,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 07:51:22,457 INFO L130 PetriNetUnfolder]: 3/15 cut-off events. [2022-12-06 07:51:22,458 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:51:22,458 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:22,458 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:22,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:22,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:22,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1610035340, now seen corresponding path program 1 times [2022-12-06 07:51:22,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:22,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920675360] [2022-12-06 07:51:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:22,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:22,782 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 07:51:22,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:22,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920675360] [2022-12-06 07:51:22,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920675360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:51:22,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:51:22,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 07:51:22,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707360418] [2022-12-06 07:51:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:51:22,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:51:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:51:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:51:22,810 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 16 [2022-12-06 07:51:22,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 07:51:22,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:22,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 16 [2022-12-06 07:51:22,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:22,893 INFO L130 PetriNetUnfolder]: 64/113 cut-off events. [2022-12-06 07:51:22,893 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-06 07:51:22,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 113 events. 64/113 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 335 event pairs, 13 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 162. Up to 66 conditions per place. [2022-12-06 07:51:22,895 INFO L137 encePairwiseOnDemand]: 13/16 looper letters, 19 selfloop transitions, 2 changer transitions 4/26 dead transitions. [2022-12-06 07:51:22,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 26 transitions, 123 flow [2022-12-06 07:51:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:51:22,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:51:22,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2022-12-06 07:51:22,904 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2022-12-06 07:51:22,906 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 44 flow. Second operand 3 states and 29 transitions. [2022-12-06 07:51:22,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 26 transitions, 123 flow [2022-12-06 07:51:22,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 26 transitions, 109 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 07:51:22,910 INFO L231 Difference]: Finished difference. Result has 19 places, 17 transitions, 48 flow [2022-12-06 07:51:22,911 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=19, PETRI_TRANSITIONS=17} [2022-12-06 07:51:22,914 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2022-12-06 07:51:22,914 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:22,915 INFO L89 Accepts]: Start accepts. Operand has 19 places, 17 transitions, 48 flow [2022-12-06 07:51:22,917 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:22,917 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:22,917 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 17 transitions, 48 flow [2022-12-06 07:51:22,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 17 transitions, 48 flow [2022-12-06 07:51:22,927 INFO L130 PetriNetUnfolder]: 3/21 cut-off events. [2022-12-06 07:51:22,927 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:51:22,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 21 events. 3/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 4 conditions per place. [2022-12-06 07:51:22,928 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 17 transitions, 48 flow [2022-12-06 07:51:22,929 INFO L188 LiptonReduction]: Number of co-enabled transitions 54 [2022-12-06 07:51:22,929 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:51:22,932 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 18 [2022-12-06 07:51:22,932 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 17 transitions, 48 flow [2022-12-06 07:51:22,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 07:51:22,932 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:22,933 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:22,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:51:22,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1695124947, now seen corresponding path program 1 times [2022-12-06 07:51:22,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:22,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942132943] [2022-12-06 07:51:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:23,072 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 07:51:23,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:23,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942132943] [2022-12-06 07:51:23,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942132943] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:51:23,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:51:23,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 07:51:23,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917020696] [2022-12-06 07:51:23,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:51:23,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:51:23,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:23,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:51:23,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:51:23,075 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 16 [2022-12-06 07:51:23,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 17 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 07:51:23,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:23,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 16 [2022-12-06 07:51:23,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:23,114 INFO L130 PetriNetUnfolder]: 48/96 cut-off events. [2022-12-06 07:51:23,114 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-06 07:51:23,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 96 events. 48/96 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 226 event pairs, 15 based on Foata normal form. 6/83 useless extension candidates. Maximal degree in co-relation 123. Up to 66 conditions per place. [2022-12-06 07:51:23,115 INFO L137 encePairwiseOnDemand]: 13/16 looper letters, 16 selfloop transitions, 2 changer transitions 5/24 dead transitions. [2022-12-06 07:51:23,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 24 transitions, 110 flow [2022-12-06 07:51:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:51:23,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:51:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2022-12-06 07:51:23,117 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2022-12-06 07:51:23,117 INFO L175 Difference]: Start difference. First operand has 19 places, 17 transitions, 48 flow. Second operand 3 states and 26 transitions. [2022-12-06 07:51:23,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 24 transitions, 110 flow [2022-12-06 07:51:23,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:51:23,118 INFO L231 Difference]: Finished difference. Result has 21 places, 18 transitions, 58 flow [2022-12-06 07:51:23,118 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=21, PETRI_TRANSITIONS=18} [2022-12-06 07:51:23,119 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2022-12-06 07:51:23,119 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:23,119 INFO L89 Accepts]: Start accepts. Operand has 21 places, 18 transitions, 58 flow [2022-12-06 07:51:23,120 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:23,120 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:23,120 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 18 transitions, 58 flow [2022-12-06 07:51:23,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 58 flow [2022-12-06 07:51:23,123 INFO L130 PetriNetUnfolder]: 4/25 cut-off events. [2022-12-06 07:51:23,123 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 07:51:23,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 25 events. 4/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 21. Up to 5 conditions per place. [2022-12-06 07:51:23,124 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 18 transitions, 58 flow [2022-12-06 07:51:23,124 INFO L188 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-06 07:51:23,125 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:51:23,125 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 6 [2022-12-06 07:51:23,126 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 18 transitions, 58 flow [2022-12-06 07:51:23,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 07:51:23,126 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:23,126 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:23,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 07:51:23,127 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1003160808, now seen corresponding path program 1 times [2022-12-06 07:51:23,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:23,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586395588] [2022-12-06 07:51:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:51:23,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:23,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586395588] [2022-12-06 07:51:23,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586395588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:51:23,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:51:23,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:51:23,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289692151] [2022-12-06 07:51:23,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:51:23,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:51:23,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:23,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:51:23,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:51:23,278 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 16 [2022-12-06 07:51:23,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 07:51:23,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:23,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 16 [2022-12-06 07:51:23,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:23,339 INFO L130 PetriNetUnfolder]: 57/126 cut-off events. [2022-12-06 07:51:23,340 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-12-06 07:51:23,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 126 events. 57/126 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 394 event pairs, 40 based on Foata normal form. 6/130 useless extension candidates. Maximal degree in co-relation 202. Up to 95 conditions per place. [2022-12-06 07:51:23,344 INFO L137 encePairwiseOnDemand]: 12/16 looper letters, 16 selfloop transitions, 2 changer transitions 10/29 dead transitions. [2022-12-06 07:51:23,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 29 transitions, 140 flow [2022-12-06 07:51:23,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:51:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:51:23,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 31 transitions. [2022-12-06 07:51:23,346 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.484375 [2022-12-06 07:51:23,346 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 58 flow. Second operand 4 states and 31 transitions. [2022-12-06 07:51:23,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 29 transitions, 140 flow [2022-12-06 07:51:23,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 29 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:51:23,348 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 70 flow [2022-12-06 07:51:23,348 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2022-12-06 07:51:23,349 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 5 predicate places. [2022-12-06 07:51:23,349 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:23,349 INFO L89 Accepts]: Start accepts. Operand has 25 places, 19 transitions, 70 flow [2022-12-06 07:51:23,350 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:23,351 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:23,351 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 19 transitions, 70 flow [2022-12-06 07:51:23,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 70 flow [2022-12-06 07:51:23,356 INFO L130 PetriNetUnfolder]: 4/26 cut-off events. [2022-12-06 07:51:23,356 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:51:23,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 26 events. 4/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 36. Up to 5 conditions per place. [2022-12-06 07:51:23,357 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 70 flow [2022-12-06 07:51:23,357 INFO L188 LiptonReduction]: Number of co-enabled transitions 48 [2022-12-06 07:51:24,146 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:51:24,147 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 798 [2022-12-06 07:51:24,147 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 18 transitions, 66 flow [2022-12-06 07:51:24,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 07:51:24,147 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:24,147 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:24,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 07:51:24,147 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:24,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1888013319, now seen corresponding path program 1 times [2022-12-06 07:51:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:24,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258942375] [2022-12-06 07:51:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:24,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:24,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:24,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258942375] [2022-12-06 07:51:24,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258942375] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:51:24,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131665407] [2022-12-06 07:51:24,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:24,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:51:24,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:51:24,713 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 07:51:24,716 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 07:51:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:24,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-06 07:51:24,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:51:24,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-06 07:51:24,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:51:24,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:51:25,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-06 07:51:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:25,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:51:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:25,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131665407] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:51:25,317 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:51:25,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2022-12-06 07:51:25,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047203464] [2022-12-06 07:51:25,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:51:25,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-06 07:51:25,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:25,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-06 07:51:25,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=253, Unknown=1, NotChecked=0, Total=342 [2022-12-06 07:51:25,318 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-06 07:51:25,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 18 transitions, 66 flow. Second operand has 19 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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 07:51:25,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:25,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-06 07:51:25,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:25,415 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse10 (* c_~front~0 4)) (.cse11 (* c_~back~0 4))) (let ((.cse4 (+ c_~queue~0.offset .cse11)) (.cse3 (+ c_~queue~0.offset .cse10)) (.cse0 (not (< c_~back~0 c_~n~0))) (.cse5 (not (<= 0 c_~back~0)))) (and (not (< 1 c_~sum~0)) (let ((.cse2 (select |c_#memory_int| c_~queue~0.base))) (or .cse0 (let ((.cse1 (+ c_~sum~0 (select .cse2 .cse3)))) (and (not (< .cse1 0)) (not (< 1 .cse1)))) (not (= (select .cse2 .cse4) 1)) .cse5)) (or (let ((.cse8 (+ .cse11 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse7 (+ .cse10 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|))) (and (forall ((v_ArrVal_73 (Array Int Int)) (v_ArrVal_72 (Array Int Int))) (let ((.cse6 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_72) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_73) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (< (+ c_~sum~0 (select .cse6 .cse7)) 0)) (not (= (select .cse6 .cse8) 1))))) (forall ((v_ArrVal_73 (Array Int Int)) (v_ArrVal_72 (Array Int Int))) (let ((.cse9 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_72) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_73) |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (not (= (select .cse9 .cse8) 1)) (not (< 1 (+ c_~sum~0 (select .cse9 .cse7))))))))) (< |c_ULTIMATE.start_create_fresh_int_array_~i~0#1| |c_ULTIMATE.start_create_fresh_int_array_~size#1|) .cse0 .cse5) (not (< c_~sum~0 0)) (or (and (forall ((v_ArrVal_73 (Array Int Int))) (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_73) c_~queue~0.base))) (or (not (= (select .cse12 .cse4) 1)) (not (< 1 (+ c_~sum~0 (select .cse12 .cse3))))))) (forall ((v_ArrVal_73 (Array Int Int))) (let ((.cse13 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_73) c_~queue~0.base))) (or (not (= (select .cse13 .cse4) 1)) (not (< (+ c_~sum~0 (select .cse13 .cse3)) 0)))))) .cse0 .cse5)))) is different from false [2022-12-06 07:51:26,023 INFO L130 PetriNetUnfolder]: 171/326 cut-off events. [2022-12-06 07:51:26,023 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2022-12-06 07:51:26,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 326 events. 171/326 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1273 event pairs, 3 based on Foata normal form. 4/328 useless extension candidates. Maximal degree in co-relation 777. Up to 73 conditions per place. [2022-12-06 07:51:26,025 INFO L137 encePairwiseOnDemand]: 7/16 looper letters, 37 selfloop transitions, 19 changer transitions 45/101 dead transitions. [2022-12-06 07:51:26,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 101 transitions, 494 flow [2022-12-06 07:51:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-06 07:51:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-06 07:51:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 105 transitions. [2022-12-06 07:51:26,026 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3860294117647059 [2022-12-06 07:51:26,026 INFO L175 Difference]: Start difference. First operand has 23 places, 18 transitions, 66 flow. Second operand 17 states and 105 transitions. [2022-12-06 07:51:26,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 101 transitions, 494 flow [2022-12-06 07:51:26,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 101 transitions, 478 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-06 07:51:26,029 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 185 flow [2022-12-06 07:51:26,029 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=185, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2022-12-06 07:51:26,030 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 24 predicate places. [2022-12-06 07:51:26,030 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:26,030 INFO L89 Accepts]: Start accepts. Operand has 44 places, 32 transitions, 185 flow [2022-12-06 07:51:26,031 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:26,031 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:26,031 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 32 transitions, 185 flow [2022-12-06 07:51:26,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 32 transitions, 185 flow [2022-12-06 07:51:26,037 INFO L130 PetriNetUnfolder]: 11/68 cut-off events. [2022-12-06 07:51:26,037 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-06 07:51:26,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 68 events. 11/68 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 244 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2022-12-06 07:51:26,038 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 32 transitions, 185 flow [2022-12-06 07:51:26,038 INFO L188 LiptonReduction]: Number of co-enabled transitions 112 [2022-12-06 07:51:26,347 WARN L322 ript$VariableManager]: TermVariable LBE222 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:26,347 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:26,434 WARN L322 ript$VariableManager]: TermVariable LBE222 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:26,434 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:28,314 WARN L322 ript$VariableManager]: TermVariable LBE84 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:28,314 WARN L322 ript$VariableManager]: TermVariable LBE221 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:28,315 WARN L322 ript$VariableManager]: TermVariable LBE220 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:28,315 WARN L322 ript$VariableManager]: TermVariable LBE67 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:28,532 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-06 07:51:28,533 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2503 [2022-12-06 07:51:28,533 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 30 transitions, 193 flow [2022-12-06 07:51:28,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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 07:51:28,533 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:28,533 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:28,539 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 07:51:28,737 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 07:51:28,739 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:28,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:28,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1325654954, now seen corresponding path program 1 times [2022-12-06 07:51:28,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:28,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734859548] [2022-12-06 07:51:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:28,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:28,814 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 07:51:28,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:28,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734859548] [2022-12-06 07:51:28,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734859548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:51:28,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:51:28,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:51:28,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614812614] [2022-12-06 07:51:28,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:51:28,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:51:28,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:28,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:51:28,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:51:28,815 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 22 [2022-12-06 07:51:28,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 07:51:28,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:28,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 22 [2022-12-06 07:51:28,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:28,886 INFO L130 PetriNetUnfolder]: 227/436 cut-off events. [2022-12-06 07:51:28,886 INFO L131 PetriNetUnfolder]: For 462/462 co-relation queries the response was YES. [2022-12-06 07:51:28,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 436 events. 227/436 cut-off events. For 462/462 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1849 event pairs, 36 based on Foata normal form. 12/440 useless extension candidates. Maximal degree in co-relation 1100. Up to 206 conditions per place. [2022-12-06 07:51:28,888 INFO L137 encePairwiseOnDemand]: 12/22 looper letters, 35 selfloop transitions, 12 changer transitions 1/48 dead transitions. [2022-12-06 07:51:28,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 48 transitions, 368 flow [2022-12-06 07:51:28,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:51:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:51:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2022-12-06 07:51:28,890 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4659090909090909 [2022-12-06 07:51:28,890 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 193 flow. Second operand 4 states and 41 transitions. [2022-12-06 07:51:28,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 48 transitions, 368 flow [2022-12-06 07:51:28,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 335 flow, removed 10 selfloop flow, removed 2 redundant places. [2022-12-06 07:51:28,895 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 238 flow [2022-12-06 07:51:28,895 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2022-12-06 07:51:28,897 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 25 predicate places. [2022-12-06 07:51:28,897 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:28,897 INFO L89 Accepts]: Start accepts. Operand has 45 places, 33 transitions, 238 flow [2022-12-06 07:51:28,898 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:28,898 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:28,898 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 33 transitions, 238 flow [2022-12-06 07:51:28,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 33 transitions, 238 flow [2022-12-06 07:51:28,905 INFO L130 PetriNetUnfolder]: 12/86 cut-off events. [2022-12-06 07:51:28,906 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2022-12-06 07:51:28,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 86 events. 12/86 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 363 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 219. Up to 18 conditions per place. [2022-12-06 07:51:28,907 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 33 transitions, 238 flow [2022-12-06 07:51:28,907 INFO L188 LiptonReduction]: Number of co-enabled transitions 120 [2022-12-06 07:51:28,908 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:51:28,909 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 12 [2022-12-06 07:51:28,909 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 238 flow [2022-12-06 07:51:28,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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 07:51:28,910 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:28,911 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:28,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 07:51:28,912 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:28,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:28,912 INFO L85 PathProgramCache]: Analyzing trace with hash 196599622, now seen corresponding path program 1 times [2022-12-06 07:51:28,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:28,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575362980] [2022-12-06 07:51:28,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:28,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:28,988 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 07:51:28,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:28,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575362980] [2022-12-06 07:51:28,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575362980] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:51:28,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:51:28,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 07:51:28,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473426446] [2022-12-06 07:51:28,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:51:28,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:51:28,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:28,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:51:28,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:51:28,990 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 20 [2022-12-06 07:51:28,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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 07:51:28,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:28,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 20 [2022-12-06 07:51:28,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:29,055 INFO L130 PetriNetUnfolder]: 185/367 cut-off events. [2022-12-06 07:51:29,055 INFO L131 PetriNetUnfolder]: For 681/681 co-relation queries the response was YES. [2022-12-06 07:51:29,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 367 events. 185/367 cut-off events. For 681/681 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1507 event pairs, 140 based on Foata normal form. 10/376 useless extension candidates. Maximal degree in co-relation 1235. Up to 250 conditions per place. [2022-12-06 07:51:29,057 INFO L137 encePairwiseOnDemand]: 17/20 looper letters, 23 selfloop transitions, 0 changer transitions 15/38 dead transitions. [2022-12-06 07:51:29,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 324 flow [2022-12-06 07:51:29,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:51:29,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:51:29,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-06 07:51:29,057 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2022-12-06 07:51:29,057 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 238 flow. Second operand 3 states and 31 transitions. [2022-12-06 07:51:29,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 324 flow [2022-12-06 07:51:29,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 306 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-06 07:51:29,059 INFO L231 Difference]: Finished difference. Result has 41 places, 23 transitions, 147 flow [2022-12-06 07:51:29,059 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=20, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=41, PETRI_TRANSITIONS=23} [2022-12-06 07:51:29,060 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 21 predicate places. [2022-12-06 07:51:29,060 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:29,060 INFO L89 Accepts]: Start accepts. Operand has 41 places, 23 transitions, 147 flow [2022-12-06 07:51:29,060 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:29,061 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:29,061 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 23 transitions, 147 flow [2022-12-06 07:51:29,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 23 transitions, 147 flow [2022-12-06 07:51:29,065 INFO L130 PetriNetUnfolder]: 7/51 cut-off events. [2022-12-06 07:51:29,065 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-06 07:51:29,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 51 events. 7/51 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 141 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 116. Up to 11 conditions per place. [2022-12-06 07:51:29,066 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 23 transitions, 147 flow [2022-12-06 07:51:29,066 INFO L188 LiptonReduction]: Number of co-enabled transitions 74 [2022-12-06 07:51:29,066 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:51:29,067 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-06 07:51:29,067 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 147 flow [2022-12-06 07:51:29,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 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 07:51:29,067 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:29,067 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:29,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 07:51:29,067 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:29,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:29,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1528038232, now seen corresponding path program 1 times [2022-12-06 07:51:29,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:29,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477826030] [2022-12-06 07:51:29,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:29,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:29,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:29,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477826030] [2022-12-06 07:51:29,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477826030] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:51:29,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928419025] [2022-12-06 07:51:29,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:29,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:51:29,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:51:29,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:51:29,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 07:51:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:29,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-06 07:51:29,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:51:30,195 INFO L321 Elim1Store]: treesize reduction 24, result has 11.1 percent of original size [2022-12-06 07:51:30,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 17 [2022-12-06 07:51:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:30,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:51:30,424 INFO L321 Elim1Store]: treesize reduction 12, result has 81.5 percent of original size [2022-12-06 07:51:30,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 78 [2022-12-06 07:51:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:30,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928419025] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:51:30,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:51:30,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2022-12-06 07:51:30,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009423906] [2022-12-06 07:51:30,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:51:30,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-06 07:51:30,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:30,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-06 07:51:30,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-12-06 07:51:30,699 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 16 [2022-12-06 07:51:30,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 147 flow. Second operand has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 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 07:51:30,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:30,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 16 [2022-12-06 07:51:30,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:32,991 INFO L130 PetriNetUnfolder]: 573/1075 cut-off events. [2022-12-06 07:51:32,991 INFO L131 PetriNetUnfolder]: For 1616/1616 co-relation queries the response was YES. [2022-12-06 07:51:32,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3469 conditions, 1075 events. 573/1075 cut-off events. For 1616/1616 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5642 event pairs, 76 based on Foata normal form. 18/1093 useless extension candidates. Maximal degree in co-relation 3395. Up to 222 conditions per place. [2022-12-06 07:51:32,995 INFO L137 encePairwiseOnDemand]: 9/16 looper letters, 108 selfloop transitions, 45 changer transitions 62/215 dead transitions. [2022-12-06 07:51:32,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 215 transitions, 1426 flow [2022-12-06 07:51:32,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-06 07:51:32,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-12-06 07:51:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 210 transitions. [2022-12-06 07:51:32,998 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.525 [2022-12-06 07:51:32,998 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 147 flow. Second operand 25 states and 210 transitions. [2022-12-06 07:51:32,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 215 transitions, 1426 flow [2022-12-06 07:51:33,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 215 transitions, 1314 flow, removed 46 selfloop flow, removed 8 redundant places. [2022-12-06 07:51:33,004 INFO L231 Difference]: Finished difference. Result has 65 places, 73 transitions, 726 flow [2022-12-06 07:51:33,004 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=16, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=726, PETRI_PLACES=65, PETRI_TRANSITIONS=73} [2022-12-06 07:51:33,004 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 45 predicate places. [2022-12-06 07:51:33,004 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:33,004 INFO L89 Accepts]: Start accepts. Operand has 65 places, 73 transitions, 726 flow [2022-12-06 07:51:33,006 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:33,006 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:33,006 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 73 transitions, 726 flow [2022-12-06 07:51:33,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 73 transitions, 726 flow [2022-12-06 07:51:33,024 INFO L130 PetriNetUnfolder]: 34/204 cut-off events. [2022-12-06 07:51:33,024 INFO L131 PetriNetUnfolder]: For 908/908 co-relation queries the response was YES. [2022-12-06 07:51:33,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 204 events. 34/204 cut-off events. For 908/908 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1277 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 503. Up to 38 conditions per place. [2022-12-06 07:51:33,025 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 73 transitions, 726 flow [2022-12-06 07:51:33,025 INFO L188 LiptonReduction]: Number of co-enabled transitions 350 [2022-12-06 07:51:33,026 WARN L322 ript$VariableManager]: TermVariable LBE84 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,026 WARN L322 ript$VariableManager]: TermVariable LBE221 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,026 WARN L322 ript$VariableManager]: TermVariable LBE220 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,026 WARN L322 ript$VariableManager]: TermVariable LBE67 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,376 WARN L322 ript$VariableManager]: TermVariable LBE222 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,376 WARN L322 ript$VariableManager]: TermVariable LBE18 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,453 WARN L322 ript$VariableManager]: TermVariable LBE84 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,454 WARN L322 ript$VariableManager]: TermVariable LBE221 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,454 WARN L322 ript$VariableManager]: TermVariable LBE220 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:33,454 WARN L322 ript$VariableManager]: TermVariable LBE67 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:35,493 INFO L203 LiptonReduction]: Total number of compositions: 4 [2022-12-06 07:51:35,494 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2490 [2022-12-06 07:51:35,494 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 73 transitions, 750 flow [2022-12-06 07:51:35,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 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 07:51:35,494 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:51:35,494 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:51:35,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-06 07:51:35,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-06 07:51:35,695 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:51:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:51:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1476155778, now seen corresponding path program 1 times [2022-12-06 07:51:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:51:35,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653865454] [2022-12-06 07:51:35,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:35,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:51:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:36,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:51:36,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653865454] [2022-12-06 07:51:36,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653865454] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 07:51:36,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517750221] [2022-12-06 07:51:36,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:51:36,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:51:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:51:36,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:51:36,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 07:51:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:51:36,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-06 07:51:36,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:51:36,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-12-06 07:51:36,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:51:36,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-06 07:51:36,250 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:51:36,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 14 [2022-12-06 07:51:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:36,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:51:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:51:36,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517750221] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:51:36,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 07:51:36,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2022-12-06 07:51:36,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425652692] [2022-12-06 07:51:36,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 07:51:36,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-06 07:51:36,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:51:36,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-06 07:51:36,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2022-12-06 07:51:36,437 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 21 [2022-12-06 07:51:36,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 73 transitions, 750 flow. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 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 07:51:36,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:51:36,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 21 [2022-12-06 07:51:36,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:51:44,792 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 59 DAG size of output: 58 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-06 07:51:45,194 INFO L130 PetriNetUnfolder]: 722/1342 cut-off events. [2022-12-06 07:51:45,194 INFO L131 PetriNetUnfolder]: For 3822/3822 co-relation queries the response was YES. [2022-12-06 07:51:45,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4832 conditions, 1342 events. 722/1342 cut-off events. For 3822/3822 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7480 event pairs, 194 based on Foata normal form. 4/1335 useless extension candidates. Maximal degree in co-relation 4532. Up to 776 conditions per place. [2022-12-06 07:51:45,201 INFO L137 encePairwiseOnDemand]: 10/21 looper letters, 88 selfloop transitions, 28 changer transitions 34/150 dead transitions. [2022-12-06 07:51:45,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 150 transitions, 1451 flow [2022-12-06 07:51:45,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 07:51:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 07:51:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 89 transitions. [2022-12-06 07:51:45,203 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3852813852813853 [2022-12-06 07:51:45,203 INFO L175 Difference]: Start difference. First operand has 65 places, 73 transitions, 750 flow. Second operand 11 states and 89 transitions. [2022-12-06 07:51:45,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 150 transitions, 1451 flow [2022-12-06 07:51:45,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 150 transitions, 1133 flow, removed 159 selfloop flow, removed 0 redundant places. [2022-12-06 07:51:45,214 INFO L231 Difference]: Finished difference. Result has 79 places, 86 transitions, 739 flow [2022-12-06 07:51:45,215 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=739, PETRI_PLACES=79, PETRI_TRANSITIONS=86} [2022-12-06 07:51:45,216 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 59 predicate places. [2022-12-06 07:51:45,216 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:51:45,216 INFO L89 Accepts]: Start accepts. Operand has 79 places, 86 transitions, 739 flow [2022-12-06 07:51:45,217 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:51:45,218 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:51:45,218 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 86 transitions, 739 flow [2022-12-06 07:51:45,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 86 transitions, 739 flow [2022-12-06 07:51:45,240 INFO L130 PetriNetUnfolder]: 45/250 cut-off events. [2022-12-06 07:51:45,240 INFO L131 PetriNetUnfolder]: For 988/988 co-relation queries the response was YES. [2022-12-06 07:51:45,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 250 events. 45/250 cut-off events. For 988/988 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1670 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 554. Up to 46 conditions per place. [2022-12-06 07:51:45,242 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 86 transitions, 739 flow [2022-12-06 07:51:45,242 INFO L188 LiptonReduction]: Number of co-enabled transitions 406 [2022-12-06 07:51:45,243 WARN L322 ript$VariableManager]: TermVariable LBE221 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:45,243 WARN L322 ript$VariableManager]: TermVariable LBE220 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:45,243 WARN L322 ript$VariableManager]: TermVariable LBE67 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:45,243 WARN L322 ript$VariableManager]: TermVariable LBE84 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-12-06 07:51:45,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-06 07:51:45,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:51:45,451 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Function c_aux_v_thread2Thread1of1ForFork1_#t~nondet4#1_72 is already defined. at de.uni_freiburg.informatik.ultimate.logic.NoopScript.declareFun(NoopScript.java:229) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.declareFun(Scriptor.java:115) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.declareFun(WrapperScript.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.declareFun(HistoryRecordingScript.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.declareFun(ManagedScript.java:172) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.variables.ProgramVarUtils.constructConstantForAuxVar(ProgramVarUtils.java:117) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.computeClosedFormula(UnmodifiableTransFormula.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.(UnmodifiableTransFormula.java:90) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:324) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.BranchEncoderRenaming.applyToTransFormula(BranchEncoderRenaming.java:114) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.BranchEncoderRenaming.applyToIcfgEdge(BranchEncoderRenaming.java:134) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.IcfgCompositionFactory.composeSequential(IcfgCompositionFactory.java:119) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.IcfgCompositionFactory.composeSequential(IcfgCompositionFactory.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.CompositionFactoryWithCacheUpdate.composeSequential(CompositionFactoryWithCacheUpdate.java:67) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.CompositionFactoryWithCacheUpdate.composeSequential(CompositionFactoryWithCacheUpdate.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SequenceRule.executeComposition(SequenceRule.java:724) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SequenceRule.applyInternal(SequenceRule.java:150) at de.uni_freiburg.informatik.ultimate.automata.partialorder.ReductionRule.apply(ReductionRule.java:80) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleWrapper(LiptonReduction.java:252) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.performReduction(LiptonReduction.java:199) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:143) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:106) 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 07:51:45,455 INFO L158 Benchmark]: Toolchain (without parser) took 27856.80ms. Allocated memory was 177.2MB in the beginning and 389.0MB in the end (delta: 211.8MB). Free memory was 153.0MB in the beginning and 234.5MB in the end (delta: -81.5MB). Peak memory consumption was 130.9MB. Max. memory is 8.0GB. [2022-12-06 07:51:45,455 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory was 155.1MB in the beginning and 155.1MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:51:45,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.13ms. Allocated memory is still 177.2MB. Free memory was 153.0MB in the beginning and 140.7MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 07:51:45,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.00ms. Allocated memory is still 177.2MB. Free memory was 140.7MB in the beginning and 139.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:51:45,456 INFO L158 Benchmark]: Boogie Preprocessor took 32.84ms. Allocated memory is still 177.2MB. Free memory was 139.0MB in the beginning and 137.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:51:45,456 INFO L158 Benchmark]: RCFGBuilder took 429.92ms. Allocated memory is still 177.2MB. Free memory was 137.2MB in the beginning and 116.6MB in the end (delta: 20.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 07:51:45,456 INFO L158 Benchmark]: TraceAbstraction took 27121.40ms. Allocated memory was 177.2MB in the beginning and 389.0MB in the end (delta: 211.8MB). Free memory was 115.9MB in the beginning and 234.5MB in the end (delta: -118.6MB). Peak memory consumption was 94.2MB. Max. memory is 8.0GB. [2022-12-06 07:51:45,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 177.2MB. Free memory was 155.1MB in the beginning and 155.1MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 226.13ms. Allocated memory is still 177.2MB. Free memory was 153.0MB in the beginning and 140.7MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.00ms. Allocated memory is still 177.2MB. Free memory was 140.7MB in the beginning and 139.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.84ms. Allocated memory is still 177.2MB. Free memory was 139.0MB in the beginning and 137.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 429.92ms. Allocated memory is still 177.2MB. Free memory was 137.2MB in the beginning and 116.6MB in the end (delta: 20.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 27121.40ms. Allocated memory was 177.2MB in the beginning and 389.0MB in the end (delta: 211.8MB). Free memory was 115.9MB in the beginning and 234.5MB in the end (delta: -118.6MB). Peak memory consumption was 94.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 108 PlacesBefore, 20 PlacesAfterwards, 112 TransitionsBefore, 16 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 62 TrivialYvCompositions, 26 ConcurrentYvCompositions, 8 ChoiceCompositions, 96 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 402, independent: 400, independent conditional: 400, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 402, independent: 400, independent conditional: 0, independent unconditional: 400, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 402, independent: 400, independent conditional: 0, independent unconditional: 400, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 402, independent: 400, independent conditional: 0, independent unconditional: 400, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 362, independent: 360, independent conditional: 0, independent unconditional: 360, 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: 362, independent: 360, independent conditional: 0, independent unconditional: 360, 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: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 402, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 362, unknown conditional: 0, unknown unconditional: 362] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 630, Positive conditional cache size: 0, Positive unconditional cache size: 630, 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: 0.0s, 19 PlacesBefore, 19 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 21 PlacesBefore, 21 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 0.8s, 24 PlacesBefore, 23 PlacesAfterwards, 19 TransitionsBefore, 18 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 44 PlacesBefore, 42 PlacesAfterwards, 32 TransitionsBefore, 30 TransitionsAfterwards, 112 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 17, independent: 17, independent conditional: 17, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 17, independent: 17, independent conditional: 13, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 17, independent: 17, independent conditional: 13, independent unconditional: 4, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, independent: 15, independent conditional: 13, independent unconditional: 2, 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: 15, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 1, independent conditional: 1, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 15, unknown conditional: 13, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 22, Positive conditional cache size: 20, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 44 PlacesBefore, 44 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 22, Positive conditional cache size: 20, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 35 PlacesBefore, 35 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 74 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 22, Positive conditional cache size: 20, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 65 PlacesBefore, 65 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, independent: 10, independent conditional: 10, 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: 10, independent: 10, independent conditional: 0, independent unconditional: 10, 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: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 46, Positive conditional cache size: 44, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - ExceptionOrErrorResult: SMTLIBException: Function c_aux_v_thread2Thread1of1ForFork1_#t~nondet4#1_72 is already defined. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Function c_aux_v_thread2Thread1of1ForFork1_#t~nondet4#1_72 is already defined.: de.uni_freiburg.informatik.ultimate.logic.NoopScript.declareFun(NoopScript.java:229) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 07:51:45,488 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...