/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 18:17:18,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 18:17:18,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 18:17:18,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 18:17:18,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 18:17:18,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 18:17:18,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 18:17:18,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 18:17:18,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 18:17:18,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 18:17:18,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 18:17:18,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 18:17:18,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 18:17:18,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 18:17:18,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 18:17:18,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 18:17:18,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 18:17:18,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 18:17:18,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 18:17:18,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 18:17:18,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 18:17:18,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 18:17:18,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 18:17:18,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 18:17:18,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 18:17:18,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 18:17:18,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 18:17:18,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 18:17:18,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 18:17:18,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 18:17:18,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 18:17:18,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 18:17:18,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 18:17:18,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 18:17:18,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 18:17:18,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 18:17:18,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 18:17:18,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 18:17:18,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 18:17:18,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 18:17:18,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 18:17:18,960 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-NoLbe.epf [2022-12-06 18:17:18,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 18:17:18,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 18:17:18,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 18:17:18,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 18:17:18,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 18:17:18,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 18:17:18,984 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 18:17:18,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 18:17:18,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 18:17:18,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 18:17:18,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 18:17:18,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 18:17:18,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 18:17:18,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 18:17:18,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 18:17:18,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 18:17:18,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 18:17:18,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 18:17:18,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 18:17:18,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 18:17:18,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 18:17:18,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 18:17:18,987 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 18:17:18,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 18:17:18,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 18:17:19,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 18:17:19,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 18:17:19,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 18:17:19,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 18:17:19,425 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 18:17:19,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2022-12-06 18:17:20,449 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 18:17:20,648 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 18:17:20,648 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2022-12-06 18:17:20,653 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac5644fe/e75b28df6c8b413a879fe16519e27d71/FLAG6ace26597 [2022-12-06 18:17:20,665 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac5644fe/e75b28df6c8b413a879fe16519e27d71 [2022-12-06 18:17:20,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 18:17:20,668 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 18:17:20,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 18:17:20,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 18:17:20,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 18:17:20,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615c25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20, skipping insertion in model container [2022-12-06 18:17:20,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 18:17:20,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 18:17:20,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,802 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-proofs-counter-add-4-semi-Q67.wvr.c[2611,2624] [2022-12-06 18:17:20,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 18:17:20,812 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 18:17:20,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 18:17:20,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 18:17:20,828 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-proofs-counter-add-4-semi-Q67.wvr.c[2611,2624] [2022-12-06 18:17:20,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 18:17:20,838 INFO L208 MainTranslator]: Completed translation [2022-12-06 18:17:20,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20 WrapperNode [2022-12-06 18:17:20,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 18:17:20,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 18:17:20,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 18:17:20,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 18:17:20,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,865 INFO L138 Inliner]: procedures = 22, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2022-12-06 18:17:20,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 18:17:20,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 18:17:20,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 18:17:20,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 18:17:20,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,888 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 18:17:20,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 18:17:20,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 18:17:20,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 18:17:20,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (1/1) ... [2022-12-06 18:17:20,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 18:17:20,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:17:20,913 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 18:17:20,927 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 18:17:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 18:17:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 18:17:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 18:17:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 18:17:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 18:17:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 18:17:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 18:17:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 18:17:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 18:17:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 18:17:20,948 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 18:17:21,026 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 18:17:21,027 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 18:17:21,186 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 18:17:21,291 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 18:17:21,291 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 18:17:21,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:17:21 BoogieIcfgContainer [2022-12-06 18:17:21,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 18:17:21,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 18:17:21,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 18:17:21,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 18:17:21,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:17:20" (1/3) ... [2022-12-06 18:17:21,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a3237c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:17:21, skipping insertion in model container [2022-12-06 18:17:21,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:17:20" (2/3) ... [2022-12-06 18:17:21,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a3237c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:17:21, skipping insertion in model container [2022-12-06 18:17:21,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:17:21" (3/3) ... [2022-12-06 18:17:21,308 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2022-12-06 18:17:21,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 18:17:21,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 18:17:21,325 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 18:17:21,448 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 18:17:21,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 124 transitions, 280 flow [2022-12-06 18:17:21,565 INFO L130 PetriNetUnfolder]: 10/120 cut-off events. [2022-12-06 18:17:21,565 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 18:17:21,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 120 events. 10/120 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2022-12-06 18:17:21,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 124 transitions, 280 flow [2022-12-06 18:17:21,578 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 108 transitions, 240 flow [2022-12-06 18:17:21,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 18:17:21,596 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=PETRI_NET, 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;@61040efa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 18:17:21,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 18:17:21,629 INFO L130 PetriNetUnfolder]: 10/107 cut-off events. [2022-12-06 18:17:21,629 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 18:17:21,629 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:21,630 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:21,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:21,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:21,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1376738967, now seen corresponding path program 1 times [2022-12-06 18:17:21,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:21,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729703494] [2022-12-06 18:17:21,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:21,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:22,161 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 18:17:22,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:22,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729703494] [2022-12-06 18:17:22,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729703494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:17:22,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:17:22,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 18:17:22,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673012208] [2022-12-06 18:17:22,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:22,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 18:17:22,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:22,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 18:17:22,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-06 18:17:22,212 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 124 [2022-12-06 18:17:22,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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 18:17:22,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:22,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 124 [2022-12-06 18:17:22,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:22,313 INFO L130 PetriNetUnfolder]: 23/169 cut-off events. [2022-12-06 18:17:22,313 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-12-06 18:17:22,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 169 events. 23/169 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 43/202 useless extension candidates. Maximal degree in co-relation 137. Up to 36 conditions per place. [2022-12-06 18:17:22,316 INFO L137 encePairwiseOnDemand]: 108/124 looper letters, 25 selfloop transitions, 3 changer transitions 8/115 dead transitions. [2022-12-06 18:17:22,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 115 transitions, 347 flow [2022-12-06 18:17:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 18:17:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 18:17:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 708 transitions. [2022-12-06 18:17:22,329 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.815668202764977 [2022-12-06 18:17:22,332 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2022-12-06 18:17:22,332 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 115 transitions, 347 flow [2022-12-06 18:17:22,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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 18:17:22,333 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:22,333 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:22,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 18:17:22,333 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:22,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1598701238, now seen corresponding path program 1 times [2022-12-06 18:17:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:22,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509492423] [2022-12-06 18:17:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:22,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:17:22,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:22,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509492423] [2022-12-06 18:17:22,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509492423] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:17:22,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733600386] [2022-12-06 18:17:22,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:22,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:17:22,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:17:22,821 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 18:17:22,822 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 18:17:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:22,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 18:17:22,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:17:23,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:17:23,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:17:23,384 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 18:17:23,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733600386] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 18:17:23,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 18:17:23,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 8] total 22 [2022-12-06 18:17:23,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120347881] [2022-12-06 18:17:23,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:23,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:17:23,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:23,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:17:23,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-12-06 18:17:23,389 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 124 [2022-12-06 18:17:23,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 347 flow. Second operand has 8 states, 8 states have (on average 88.25) internal successors, (706), 8 states have internal predecessors, (706), 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 18:17:23,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:23,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 124 [2022-12-06 18:17:23,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:23,620 INFO L130 PetriNetUnfolder]: 274/751 cut-off events. [2022-12-06 18:17:23,620 INFO L131 PetriNetUnfolder]: For 487/660 co-relation queries the response was YES. [2022-12-06 18:17:23,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1664 conditions, 751 events. 274/751 cut-off events. For 487/660 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3571 event pairs, 45 based on Foata normal form. 3/606 useless extension candidates. Maximal degree in co-relation 1224. Up to 261 conditions per place. [2022-12-06 18:17:23,628 INFO L137 encePairwiseOnDemand]: 111/124 looper letters, 82 selfloop transitions, 14 changer transitions 11/177 dead transitions. [2022-12-06 18:17:23,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 177 transitions, 859 flow [2022-12-06 18:17:23,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 18:17:23,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 18:17:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1027 transitions. [2022-12-06 18:17:23,631 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7529325513196481 [2022-12-06 18:17:23,632 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 16 predicate places. [2022-12-06 18:17:23,632 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 177 transitions, 859 flow [2022-12-06 18:17:23,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.25) internal successors, (706), 8 states have internal predecessors, (706), 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 18:17:23,633 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:23,633 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:23,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 18:17:23,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:17:23,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:23,841 INFO L85 PathProgramCache]: Analyzing trace with hash 461515962, now seen corresponding path program 2 times [2022-12-06 18:17:23,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:23,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46708306] [2022-12-06 18:17:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:23,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:24,153 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 18:17:24,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:24,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46708306] [2022-12-06 18:17:24,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46708306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:17:24,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:17:24,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:17:24,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131758730] [2022-12-06 18:17:24,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:24,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:17:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:24,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:17:24,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:17:24,156 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2022-12-06 18:17:24,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 177 transitions, 859 flow. Second operand has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 18:17:24,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:24,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2022-12-06 18:17:24,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:24,736 INFO L130 PetriNetUnfolder]: 2093/3932 cut-off events. [2022-12-06 18:17:24,736 INFO L131 PetriNetUnfolder]: For 5446/9005 co-relation queries the response was YES. [2022-12-06 18:17:24,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10659 conditions, 3932 events. 2093/3932 cut-off events. For 5446/9005 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 25127 event pairs, 680 based on Foata normal form. 51/2935 useless extension candidates. Maximal degree in co-relation 7333. Up to 1265 conditions per place. [2022-12-06 18:17:24,766 INFO L137 encePairwiseOnDemand]: 111/124 looper letters, 166 selfloop transitions, 19 changer transitions 12/259 dead transitions. [2022-12-06 18:17:24,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 259 transitions, 1709 flow [2022-12-06 18:17:24,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 18:17:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 18:17:24,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 880 transitions. [2022-12-06 18:17:24,770 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7096774193548387 [2022-12-06 18:17:24,771 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 25 predicate places. [2022-12-06 18:17:24,771 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 259 transitions, 1709 flow [2022-12-06 18:17:24,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 18:17:24,772 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:24,772 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:24,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 18:17:24,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash -204030804, now seen corresponding path program 1 times [2022-12-06 18:17:24,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:24,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737910213] [2022-12-06 18:17:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:25,070 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 18:17:25,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:25,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737910213] [2022-12-06 18:17:25,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737910213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:17:25,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:17:25,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:17:25,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310637139] [2022-12-06 18:17:25,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:25,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:17:25,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:25,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:17:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:17:25,076 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2022-12-06 18:17:25,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 259 transitions, 1709 flow. Second operand has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 18:17:25,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:25,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2022-12-06 18:17:25,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:25,734 INFO L130 PetriNetUnfolder]: 2251/4315 cut-off events. [2022-12-06 18:17:25,734 INFO L131 PetriNetUnfolder]: For 8177/52109 co-relation queries the response was YES. [2022-12-06 18:17:25,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14969 conditions, 4315 events. 2251/4315 cut-off events. For 8177/52109 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 29370 event pairs, 343 based on Foata normal form. 118/3374 useless extension candidates. Maximal degree in co-relation 13409. Up to 1560 conditions per place. [2022-12-06 18:17:25,768 INFO L137 encePairwiseOnDemand]: 112/124 looper letters, 236 selfloop transitions, 21 changer transitions 23/342 dead transitions. [2022-12-06 18:17:25,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 342 transitions, 2869 flow [2022-12-06 18:17:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 18:17:25,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 18:17:25,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 885 transitions. [2022-12-06 18:17:25,770 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7137096774193549 [2022-12-06 18:17:25,772 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 34 predicate places. [2022-12-06 18:17:25,772 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 342 transitions, 2869 flow [2022-12-06 18:17:25,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 18:17:25,772 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:25,772 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:25,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 18:17:25,773 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:25,774 INFO L85 PathProgramCache]: Analyzing trace with hash -859243344, now seen corresponding path program 2 times [2022-12-06 18:17:25,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:25,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652150164] [2022-12-06 18:17:25,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:25,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:25,956 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 18:17:25,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:25,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652150164] [2022-12-06 18:17:25,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652150164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:17:25,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:17:25,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:17:25,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691237390] [2022-12-06 18:17:25,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:25,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:17:25,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:25,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:17:25,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:17:25,959 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2022-12-06 18:17:25,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 342 transitions, 2869 flow. Second operand has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 18:17:25,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:25,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2022-12-06 18:17:25,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:26,667 INFO L130 PetriNetUnfolder]: 2196/4338 cut-off events. [2022-12-06 18:17:26,668 INFO L131 PetriNetUnfolder]: For 11826/76543 co-relation queries the response was YES. [2022-12-06 18:17:26,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17841 conditions, 4338 events. 2196/4338 cut-off events. For 11826/76543 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 29895 event pairs, 460 based on Foata normal form. 90/3384 useless extension candidates. Maximal degree in co-relation 12322. Up to 1560 conditions per place. [2022-12-06 18:17:26,721 INFO L137 encePairwiseOnDemand]: 114/124 looper letters, 241 selfloop transitions, 19 changer transitions 35/357 dead transitions. [2022-12-06 18:17:26,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 357 transitions, 3584 flow [2022-12-06 18:17:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 18:17:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 18:17:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 710 transitions. [2022-12-06 18:17:26,745 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7157258064516129 [2022-12-06 18:17:26,745 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 41 predicate places. [2022-12-06 18:17:26,745 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 357 transitions, 3584 flow [2022-12-06 18:17:26,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 18:17:26,746 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:26,746 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:26,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 18:17:26,746 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:26,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash -724499938, now seen corresponding path program 3 times [2022-12-06 18:17:26,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:26,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448739947] [2022-12-06 18:17:26,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:26,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:17:27,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:27,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448739947] [2022-12-06 18:17:27,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448739947] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:17:27,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417561821] [2022-12-06 18:17:27,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-06 18:17:27,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:17:27,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:17:27,071 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 18:17:27,074 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 18:17:27,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-06 18:17:27,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:17:27,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-06 18:17:27,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:17:27,451 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 18:17:27,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 18:17:27,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417561821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:17:27,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 18:17:27,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-12-06 18:17:27,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541830012] [2022-12-06 18:17:27,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:27,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:17:27,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:27,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:17:27,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-12-06 18:17:27,453 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 124 [2022-12-06 18:17:27,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 357 transitions, 3584 flow. Second operand has 8 states, 8 states have (on average 88.25) internal successors, (706), 8 states have internal predecessors, (706), 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 18:17:27,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:27,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 124 [2022-12-06 18:17:27,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:28,052 INFO L130 PetriNetUnfolder]: 2178/4291 cut-off events. [2022-12-06 18:17:28,053 INFO L131 PetriNetUnfolder]: For 18998/49067 co-relation queries the response was YES. [2022-12-06 18:17:28,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20026 conditions, 4291 events. 2178/4291 cut-off events. For 18998/49067 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 29410 event pairs, 503 based on Foata normal form. 90/3346 useless extension candidates. Maximal degree in co-relation 13824. Up to 1560 conditions per place. [2022-12-06 18:17:28,086 INFO L137 encePairwiseOnDemand]: 112/124 looper letters, 192 selfloop transitions, 16 changer transitions 44/367 dead transitions. [2022-12-06 18:17:28,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 367 transitions, 4191 flow [2022-12-06 18:17:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 18:17:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 18:17:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 908 transitions. [2022-12-06 18:17:28,088 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7322580645161291 [2022-12-06 18:17:28,089 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 50 predicate places. [2022-12-06 18:17:28,089 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 367 transitions, 4191 flow [2022-12-06 18:17:28,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 88.25) internal successors, (706), 8 states have internal predecessors, (706), 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 18:17:28,090 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:28,090 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:28,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 18:17:28,295 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,SelfDestructingSolverStorable5 [2022-12-06 18:17:28,298 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1529312462, now seen corresponding path program 4 times [2022-12-06 18:17:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:28,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810467551] [2022-12-06 18:17:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:28,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:28,542 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 18:17:28,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:28,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810467551] [2022-12-06 18:17:28,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810467551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:17:28,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:17:28,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 18:17:28,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643644922] [2022-12-06 18:17:28,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:28,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 18:17:28,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:28,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 18:17:28,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-06 18:17:28,544 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2022-12-06 18:17:28,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 367 transitions, 4191 flow. Second operand has 9 states, 9 states have (on average 80.55555555555556) internal successors, (725), 9 states have internal predecessors, (725), 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 18:17:28,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:28,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2022-12-06 18:17:28,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:29,017 INFO L130 PetriNetUnfolder]: 1645/3171 cut-off events. [2022-12-06 18:17:29,018 INFO L131 PetriNetUnfolder]: For 16334/107594 co-relation queries the response was YES. [2022-12-06 18:17:29,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17443 conditions, 3171 events. 1645/3171 cut-off events. For 16334/107594 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 20254 event pairs, 344 based on Foata normal form. 115/2519 useless extension candidates. Maximal degree in co-relation 16083. Up to 1560 conditions per place. [2022-12-06 18:17:29,043 INFO L137 encePairwiseOnDemand]: 114/124 looper letters, 171 selfloop transitions, 17 changer transitions 53/303 dead transitions. [2022-12-06 18:17:29,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 303 transitions, 3777 flow [2022-12-06 18:17:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 18:17:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 18:17:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 777 transitions. [2022-12-06 18:17:29,045 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.696236559139785 [2022-12-06 18:17:29,045 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 57 predicate places. [2022-12-06 18:17:29,045 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 303 transitions, 3777 flow [2022-12-06 18:17:29,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.55555555555556) internal successors, (725), 9 states have internal predecessors, (725), 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 18:17:29,046 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:29,046 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:29,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 18:17:29,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:29,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2046152567, now seen corresponding path program 1 times [2022-12-06 18:17:29,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:29,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056816655] [2022-12-06 18:17:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:29,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:29,305 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 18:17:29,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:29,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056816655] [2022-12-06 18:17:29,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056816655] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:17:29,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568461975] [2022-12-06 18:17:29,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:29,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:17:29,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:17:29,307 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 18:17:29,309 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 18:17:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:29,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 18:17:29,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:17:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:17:29,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:17:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:17:29,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568461975] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:17:29,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:17:29,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2022-12-06 18:17:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666850696] [2022-12-06 18:17:29,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:17:29,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 18:17:29,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:29,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 18:17:29,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-12-06 18:17:29,578 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 124 [2022-12-06 18:17:29,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 303 transitions, 3777 flow. Second operand has 15 states, 15 states have (on average 80.66666666666667) internal successors, (1210), 15 states have internal predecessors, (1210), 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 18:17:29,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:29,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 124 [2022-12-06 18:17:29,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:31,633 INFO L130 PetriNetUnfolder]: 6446/12022 cut-off events. [2022-12-06 18:17:31,634 INFO L131 PetriNetUnfolder]: For 52196/139010 co-relation queries the response was YES. [2022-12-06 18:17:31,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77714 conditions, 12022 events. 6446/12022 cut-off events. For 52196/139010 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 94739 event pairs, 665 based on Foata normal form. 593/10002 useless extension candidates. Maximal degree in co-relation 57631. Up to 7030 conditions per place. [2022-12-06 18:17:31,740 INFO L137 encePairwiseOnDemand]: 105/124 looper letters, 549 selfloop transitions, 158 changer transitions 189/957 dead transitions. [2022-12-06 18:17:31,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 957 transitions, 15398 flow [2022-12-06 18:17:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-06 18:17:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-06 18:17:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2547 transitions. [2022-12-06 18:17:31,745 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6846774193548387 [2022-12-06 18:17:31,745 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 86 predicate places. [2022-12-06 18:17:31,745 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 957 transitions, 15398 flow [2022-12-06 18:17:31,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 80.66666666666667) internal successors, (1210), 15 states have internal predecessors, (1210), 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 18:17:31,746 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:31,746 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:31,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-06 18:17:31,952 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 18:17:31,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:31,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:31,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1720163436, now seen corresponding path program 2 times [2022-12-06 18:17:31,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:31,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118549481] [2022-12-06 18:17:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:31,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:17:32,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:32,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118549481] [2022-12-06 18:17:32,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118549481] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:17:32,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981840689] [2022-12-06 18:17:32,276 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 18:17:32,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:17:32,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:17:32,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:17:32,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 18:17:32,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 18:17:32,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:17:32,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 18:17:32,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:17:32,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:17:32,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:17:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:17:32,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981840689] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:17:32,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:17:32,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 26 [2022-12-06 18:17:32,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944967852] [2022-12-06 18:17:32,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:17:32,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-06 18:17:32,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-06 18:17:32,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2022-12-06 18:17:32,924 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2022-12-06 18:17:32,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 957 transitions, 15398 flow. Second operand has 26 states, 26 states have (on average 80.53846153846153) internal successors, (2094), 26 states have internal predecessors, (2094), 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 18:17:32,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:32,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2022-12-06 18:17:32,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:38,826 INFO L130 PetriNetUnfolder]: 16636/30320 cut-off events. [2022-12-06 18:17:38,826 INFO L131 PetriNetUnfolder]: For 150451/493111 co-relation queries the response was YES. [2022-12-06 18:17:38,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222285 conditions, 30320 events. 16636/30320 cut-off events. For 150451/493111 co-relation queries the response was YES. Maximal size of possible extension queue 1767. Compared 275136 event pairs, 660 based on Foata normal form. 1196/25267 useless extension candidates. Maximal degree in co-relation 175923. Up to 21720 conditions per place. [2022-12-06 18:17:39,195 INFO L137 encePairwiseOnDemand]: 108/124 looper letters, 1783 selfloop transitions, 303 changer transitions 371/2519 dead transitions. [2022-12-06 18:17:39,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 2519 transitions, 46211 flow [2022-12-06 18:17:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-06 18:17:39,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-12-06 18:17:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2477 transitions. [2022-12-06 18:17:39,202 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7134216589861752 [2022-12-06 18:17:39,202 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 113 predicate places. [2022-12-06 18:17:39,202 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 2519 transitions, 46211 flow [2022-12-06 18:17:39,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 80.53846153846153) internal successors, (2094), 26 states have internal predecessors, (2094), 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 18:17:39,204 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:39,204 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:39,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 18:17:39,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:17:39,410 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:39,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1185177980, now seen corresponding path program 1 times [2022-12-06 18:17:39,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:39,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510010494] [2022-12-06 18:17:39,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:39,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:17:39,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:39,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510010494] [2022-12-06 18:17:39,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510010494] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 18:17:39,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 18:17:39,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 18:17:39,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496360920] [2022-12-06 18:17:39,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 18:17:39,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 18:17:39,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:39,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 18:17:39,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-06 18:17:39,713 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2022-12-06 18:17:39,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 2519 transitions, 46211 flow. Second operand has 8 states, 8 states have (on average 81.5) internal successors, (652), 8 states have internal predecessors, (652), 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 18:17:39,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:39,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2022-12-06 18:17:39,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:17:46,737 INFO L130 PetriNetUnfolder]: 15264/27181 cut-off events. [2022-12-06 18:17:46,738 INFO L131 PetriNetUnfolder]: For 139287/410015 co-relation queries the response was YES. [2022-12-06 18:17:46,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221539 conditions, 27181 events. 15264/27181 cut-off events. For 139287/410015 co-relation queries the response was YES. Maximal size of possible extension queue 1501. Compared 236196 event pairs, 755 based on Foata normal form. 379/21797 useless extension candidates. Maximal degree in co-relation 159625. Up to 19501 conditions per place. [2022-12-06 18:17:47,371 INFO L137 encePairwiseOnDemand]: 111/124 looper letters, 1950 selfloop transitions, 35 changer transitions 417/2464 dead transitions. [2022-12-06 18:17:47,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 2464 transitions, 49684 flow [2022-12-06 18:17:47,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 18:17:47,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 18:17:47,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 857 transitions. [2022-12-06 18:17:47,386 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6911290322580645 [2022-12-06 18:17:47,387 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 118 predicate places. [2022-12-06 18:17:47,387 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 2464 transitions, 49684 flow [2022-12-06 18:17:47,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 81.5) internal successors, (652), 8 states have internal predecessors, (652), 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 18:17:47,387 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:17:47,387 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:17:47,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 18:17:47,388 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:17:47,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:17:47,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1868079039, now seen corresponding path program 1 times [2022-12-06 18:17:47,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:17:47,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242969766] [2022-12-06 18:17:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:47,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:17:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:17:47,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:17:47,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242969766] [2022-12-06 18:17:47,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242969766] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:17:47,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151909429] [2022-12-06 18:17:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:17:47,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:17:47,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:17:47,554 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:17:47,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 18:17:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:17:47,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-06 18:17:47,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:17:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:17:47,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:17:47,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:17:47,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151909429] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:17:47,850 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:17:47,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2022-12-06 18:17:47,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483112211] [2022-12-06 18:17:47,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:17:47,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 18:17:47,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:17:47,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 18:17:47,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 18:17:47,852 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 124 [2022-12-06 18:17:47,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 2464 transitions, 49684 flow. Second operand has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 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 18:17:47,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:17:47,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 124 [2022-12-06 18:17:47,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:18:00,691 INFO L130 PetriNetUnfolder]: 29148/51385 cut-off events. [2022-12-06 18:18:00,691 INFO L131 PetriNetUnfolder]: For 374136/1000442 co-relation queries the response was YES. [2022-12-06 18:18:00,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437493 conditions, 51385 events. 29148/51385 cut-off events. For 374136/1000442 co-relation queries the response was YES. Maximal size of possible extension queue 2875. Compared 486682 event pairs, 1666 based on Foata normal form. 2485/43194 useless extension candidates. Maximal degree in co-relation 311509. Up to 37408 conditions per place. [2022-12-06 18:18:01,351 INFO L137 encePairwiseOnDemand]: 114/124 looper letters, 1035 selfloop transitions, 774 changer transitions 605/3462 dead transitions. [2022-12-06 18:18:01,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 3462 transitions, 77222 flow [2022-12-06 18:18:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 18:18:01,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 18:18:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1105 transitions. [2022-12-06 18:18:01,353 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8101173020527859 [2022-12-06 18:18:01,353 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 128 predicate places. [2022-12-06 18:18:01,353 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 3462 transitions, 77222 flow [2022-12-06 18:18:01,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 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 18:18:01,354 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:18:01,354 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:18:01,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-06 18:18:01,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-06 18:18:01,560 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:18:01,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:18:01,560 INFO L85 PathProgramCache]: Analyzing trace with hash 850322814, now seen corresponding path program 2 times [2022-12-06 18:18:01,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:18:01,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116403456] [2022-12-06 18:18:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:18:01,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:18:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:18:01,766 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 18:18:01,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:18:01,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116403456] [2022-12-06 18:18:01,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116403456] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:18:01,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196165379] [2022-12-06 18:18:01,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 18:18:01,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:18:01,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:18:01,780 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:18:01,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 18:18:01,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 18:18:01,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 18:18:01,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-06 18:18:01,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:18:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:18:02,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:18:02,526 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 18:18:02,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196165379] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:18:02,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:18:02,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2022-12-06 18:18:02,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829861254] [2022-12-06 18:18:02,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:18:02,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-06 18:18:02,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:18:02,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-06 18:18:02,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2022-12-06 18:18:02,528 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 124 [2022-12-06 18:18:02,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 3462 transitions, 77222 flow. Second operand has 25 states, 25 states have (on average 80.36) internal successors, (2009), 25 states have internal predecessors, (2009), 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 18:18:02,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:18:02,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 124 [2022-12-06 18:18:02,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 18:19:02,544 INFO L130 PetriNetUnfolder]: 75199/130839 cut-off events. [2022-12-06 18:19:02,544 INFO L131 PetriNetUnfolder]: For 709890/2014497 co-relation queries the response was YES. [2022-12-06 18:19:03,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1227235 conditions, 130839 events. 75199/130839 cut-off events. For 709890/2014497 co-relation queries the response was YES. Maximal size of possible extension queue 7861. Compared 1369742 event pairs, 1293 based on Foata normal form. 4477/110207 useless extension candidates. Maximal degree in co-relation 898849. Up to 98220 conditions per place. [2022-12-06 18:19:04,145 INFO L137 encePairwiseOnDemand]: 105/124 looper letters, 10500 selfloop transitions, 4181 changer transitions 3103/17845 dead transitions. [2022-12-06 18:19:04,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 17845 transitions, 436419 flow [2022-12-06 18:19:04,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-12-06 18:19:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2022-12-06 18:19:04,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 6537 transitions. [2022-12-06 18:19:04,151 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6936544991511036 [2022-12-06 18:19:04,151 INFO L294 CegarLoopForPetriNet]: 111 programPoint places, 203 predicate places. [2022-12-06 18:19:04,151 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 17845 transitions, 436419 flow [2022-12-06 18:19:04,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 80.36) internal successors, (2009), 25 states have internal predecessors, (2009), 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 18:19:04,152 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 18:19:04,152 INFO L213 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 18:19:04,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-06 18:19:04,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:19:04,362 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 18:19:04,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 18:19:04,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1028631976, now seen corresponding path program 1 times [2022-12-06 18:19:04,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 18:19:04,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201903066] [2022-12-06 18:19:04,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:19:04,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 18:19:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:19:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:19:04,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 18:19:04,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201903066] [2022-12-06 18:19:04,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201903066] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 18:19:04,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46367293] [2022-12-06 18:19:04,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 18:19:04,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:19:04,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 18:19:04,560 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 18:19:04,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-06 18:19:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 18:19:04,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 18:19:04,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 18:19:04,935 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:19:04,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 18:19:05,147 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 18:19:05,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46367293] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 18:19:05,147 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-06 18:19:05,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-12-06 18:19:05,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221813728] [2022-12-06 18:19:05,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-06 18:19:05,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-06 18:19:05,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 18:19:05,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-06 18:19:05,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-12-06 18:19:05,154 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 124 [2022-12-06 18:19:05,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 17845 transitions, 436419 flow. Second operand has 28 states, 28 states have (on average 80.21428571428571) internal successors, (2246), 28 states have internal predecessors, (2246), 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 18:19:05,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 18:19:05,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 124 [2022-12-06 18:19:05,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-06 18:30:53,924 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 18:30:53,924 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-06 18:30:54,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-06 18:30:54,715 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 18:30:54,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-06 18:30:54,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 18:30:54,920 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 77/124 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2049333 conditions, 198261 events (117237/198260 cut-off events. For 1052413/3329059 co-relation queries the response was YES. Maximal size of possible extension queue 11244. Compared 2143622 event pairs, 1230 based on Foata normal form. 14445/174017 useless extension candidates. Maximal degree in co-relation 1467474. Up to 151747 conditions per place.). [2022-12-06 18:30:54,921 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2022-12-06 18:30:54,921 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-06 18:30:54,921 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-06 18:30:54,921 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 18:30:54,921 INFO L458 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2, 1, 1, 1] [2022-12-06 18:30:54,924 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 18:30:54,924 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 18:30:54,935 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 [2022-12-06 18:30:54,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:30:54 BasicIcfg [2022-12-06 18:30:54,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 18:30:54,961 INFO L158 Benchmark]: Toolchain (without parser) took 814292.64ms. Allocated memory was 185.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 162.3MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 5.0GB. Max. memory is 8.0GB. [2022-12-06 18:30:54,962 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 18:30:54,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.95ms. Allocated memory is still 185.6MB. Free memory was 161.9MB in the beginning and 149.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 18:30:54,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.06ms. Allocated memory is still 185.6MB. Free memory was 149.8MB in the beginning and 147.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 18:30:54,962 INFO L158 Benchmark]: Boogie Preprocessor took 24.13ms. Allocated memory is still 185.6MB. Free memory was 147.8MB in the beginning and 146.6MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 18:30:54,963 INFO L158 Benchmark]: RCFGBuilder took 410.40ms. Allocated memory is still 185.6MB. Free memory was 146.1MB in the beginning and 126.8MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 18:30:54,963 INFO L158 Benchmark]: TraceAbstraction took 813657.08ms. Allocated memory was 185.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 125.8MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 4.9GB. Max. memory is 8.0GB. [2022-12-06 18:30:54,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 185.6MB. Free memory is still 162.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 169.95ms. Allocated memory is still 185.6MB. Free memory was 161.9MB in the beginning and 149.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.06ms. Allocated memory is still 185.6MB. Free memory was 149.8MB in the beginning and 147.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.13ms. Allocated memory is still 185.6MB. Free memory was 147.8MB in the beginning and 146.6MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 410.40ms. Allocated memory is still 185.6MB. Free memory was 146.1MB in the beginning and 126.8MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 813657.08ms. Allocated memory was 185.6MB in the beginning and 5.8GB in the end (delta: 5.6GB). Free memory was 125.8MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 4.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 77/124 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2049333 conditions, 198261 events (117237/198260 cut-off events. For 1052413/3329059 co-relation queries the response was YES. Maximal size of possible extension queue 11244. Compared 2143622 event pairs, 1230 based on Foata normal form. 14445/174017 useless extension candidates. Maximal degree in co-relation 1467474. Up to 151747 conditions per place.). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 77/124 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2049333 conditions, 198261 events (117237/198260 cut-off events. For 1052413/3329059 co-relation queries the response was YES. Maximal size of possible extension queue 11244. Compared 2143622 event pairs, 1230 based on Foata normal form. 14445/174017 useless extension candidates. Maximal degree in co-relation 1467474. Up to 151747 conditions per place.). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 77/124 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2049333 conditions, 198261 events (117237/198260 cut-off events. For 1052413/3329059 co-relation queries the response was YES. Maximal size of possible extension queue 11244. Compared 2143622 event pairs, 1230 based on Foata normal form. 14445/174017 useless extension candidates. Maximal degree in co-relation 1467474. Up to 151747 conditions per place.). - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 77/124 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2049333 conditions, 198261 events (117237/198260 cut-off events. For 1052413/3329059 co-relation queries the response was YES. Maximal size of possible extension queue 11244. Compared 2143622 event pairs, 1230 based on Foata normal form. 14445/174017 useless extension candidates. Maximal degree in co-relation 1467474. Up to 151747 conditions per place.). - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (28states, 77/124 universal loopers) in iteration 13,while PetriNetUnfolder was constructing finite prefix that currently has 2049333 conditions, 198261 events (117237/198260 cut-off events. For 1052413/3329059 co-relation queries the response was YES. Maximal size of possible extension queue 11244. Compared 2143622 event pairs, 1230 based on Foata normal form. 14445/174017 useless extension candidates. Maximal degree in co-relation 1467474. Up to 151747 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 139 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 813.4s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 804.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3705 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3705 mSDsluCounter, 1895 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1590 mSDsCounter, 293 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5752 IncrementalHoareTripleChecker+Invalid, 6045 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 293 mSolverCounterUnsat, 305 mSDtfsCounter, 5752 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1566 GetRequests, 1220 SyntacticMatches, 10 SemanticMatches, 336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5016 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=436419occurred in iteration=12, InterpolantAutomatonStates: 220, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1938 NumberOfCodeBlocks, 1938 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2504 ConstructedInterpolants, 0 QuantifiedInterpolants, 13743 SizeOfPredicates, 60 NumberOfNonLiveVariables, 1930 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 56/99 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown