/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 20:45:20,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 20:45:20,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 20:45:20,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 20:45:20,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 20:45:20,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 20:45:20,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 20:45:20,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 20:45:20,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 20:45:20,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 20:45:20,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 20:45:20,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 20:45:20,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 20:45:20,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 20:45:20,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 20:45:20,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 20:45:20,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 20:45:20,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 20:45:20,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 20:45:20,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 20:45:20,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 20:45:20,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 20:45:20,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 20:45:20,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 20:45:20,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 20:45:20,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 20:45:20,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 20:45:20,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 20:45:20,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 20:45:20,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 20:45:20,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 20:45:20,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 20:45:20,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 20:45:20,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 20:45:20,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 20:45:20,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 20:45:20,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 20:45:20,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 20:45:20,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 20:45:20,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 20:45:20,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 20:45:20,842 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-SemanticLbe.epf [2022-12-12 20:45:20,868 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 20:45:20,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 20:45:20,869 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 20:45:20,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 20:45:20,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 20:45:20,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 20:45:20,871 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 20:45:20,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 20:45:20,871 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 20:45:20,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 20:45:20,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 20:45:20,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 20:45:20,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 20:45:20,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 20:45:20,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 20:45:20,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 20:45:20,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 20:45:20,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 20:45:20,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 20:45:20,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 20:45:20,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 20:45:20,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 20:45:20,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 20:45:20,874 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-12 20:45:21,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 20:45:21,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 20:45:21,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 20:45:21,168 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 20:45:21,168 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 20:45:21,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2022-12-12 20:45:22,223 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 20:45:22,426 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 20:45:22,426 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-threaded-sum-3.wvr.c [2022-12-12 20:45:22,449 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519e6cd38/08324a5f25084094a40597ed9baeb5b0/FLAGa47d670e8 [2022-12-12 20:45:22,463 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519e6cd38/08324a5f25084094a40597ed9baeb5b0 [2022-12-12 20:45:22,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 20:45:22,466 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 20:45:22,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 20:45:22,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 20:45:22,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 20:45:22,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2563d9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22, skipping insertion in model container [2022-12-12 20:45:22,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 20:45:22,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 20:45:22,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,665 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-threaded-sum-3.wvr.c[2957,2970] [2022-12-12 20:45:22,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 20:45:22,681 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 20:45:22,694 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 20:45:22,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 20:45:22,722 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-threaded-sum-3.wvr.c[2957,2970] [2022-12-12 20:45:22,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 20:45:22,735 INFO L208 MainTranslator]: Completed translation [2022-12-12 20:45:22,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22 WrapperNode [2022-12-12 20:45:22,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 20:45:22,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 20:45:22,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 20:45:22,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 20:45:22,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,777 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-12-12 20:45:22,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 20:45:22,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 20:45:22,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 20:45:22,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 20:45:22,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 20:45:22,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 20:45:22,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 20:45:22,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 20:45:22,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (1/1) ... [2022-12-12 20:45:22,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 20:45:22,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:45:22,849 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) [2022-12-12 20:45:22,865 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 [2022-12-12 20:45:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 20:45:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 20:45:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 20:45:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 20:45:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 20:45:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-12 20:45:22,893 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-12 20:45:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 20:45:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 20:45:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 20:45:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 20:45:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 20:45:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 20:45:22,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 20:45:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 20:45:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 20:45:22,896 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 20:45:22,988 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 20:45:22,989 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 20:45:23,191 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 20:45:23,230 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 20:45:23,230 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-12 20:45:23,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 08:45:23 BoogieIcfgContainer [2022-12-12 20:45:23,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 20:45:23,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 20:45:23,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 20:45:23,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 20:45:23,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 08:45:22" (1/3) ... [2022-12-12 20:45:23,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8f37ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 08:45:23, skipping insertion in model container [2022-12-12 20:45:23,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 08:45:22" (2/3) ... [2022-12-12 20:45:23,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8f37ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 08:45:23, skipping insertion in model container [2022-12-12 20:45:23,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 08:45:23" (3/3) ... [2022-12-12 20:45:23,238 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2022-12-12 20:45:23,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 20:45:23,251 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 20:45:23,252 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 20:45:23,331 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-12 20:45:23,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 108 transitions, 240 flow [2022-12-12 20:45:23,424 INFO L130 PetriNetUnfolder]: 8/105 cut-off events. [2022-12-12 20:45:23,424 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 20:45:23,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 105 events. 8/105 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-12 20:45:23,429 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 108 transitions, 240 flow [2022-12-12 20:45:23,433 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 95 transitions, 208 flow [2022-12-12 20:45:23,434 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 20:45:23,450 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 95 transitions, 208 flow [2022-12-12 20:45:23,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 95 transitions, 208 flow [2022-12-12 20:45:23,506 INFO L130 PetriNetUnfolder]: 8/95 cut-off events. [2022-12-12 20:45:23,506 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 20:45:23,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 8/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-12 20:45:23,510 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 95 transitions, 208 flow [2022-12-12 20:45:23,510 INFO L226 LiptonReduction]: Number of co-enabled transitions 1010 [2022-12-12 20:45:26,116 INFO L241 LiptonReduction]: Total number of compositions: 70 [2022-12-12 20:45:26,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 20:45:26,157 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;@5817cf6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 20:45:26,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 20:45:26,173 INFO L130 PetriNetUnfolder]: 3/24 cut-off events. [2022-12-12 20:45:26,173 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 20:45:26,173 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:45:26,173 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 20:45:26,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 20:45:26,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:45:26,185 INFO L85 PathProgramCache]: Analyzing trace with hash -239323139, now seen corresponding path program 1 times [2022-12-12 20:45:26,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:45:26,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072617835] [2022-12-12 20:45:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:26,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:45:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:26,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:26,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:45:26,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072617835] [2022-12-12 20:45:26,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072617835] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 20:45:26,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 20:45:26,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 20:45:26,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486312649] [2022-12-12 20:45:26,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:45:26,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 20:45:26,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:45:26,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 20:45:26,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 20:45:26,936 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:45:26,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-12 20:45:26,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:45:26,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:45:26,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:45:27,138 INFO L130 PetriNetUnfolder]: 601/870 cut-off events. [2022-12-12 20:45:27,139 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2022-12-12 20:45:27,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1821 conditions, 870 events. 601/870 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3041 event pairs, 39 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 1496. Up to 659 conditions per place. [2022-12-12 20:45:27,144 INFO L137 encePairwiseOnDemand]: 20/25 looper letters, 46 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2022-12-12 20:45:27,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 51 transitions, 234 flow [2022-12-12 20:45:27,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 20:45:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 20:45:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2022-12-12 20:45:27,152 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.52 [2022-12-12 20:45:27,155 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2022-12-12 20:45:27,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 51 transitions, 234 flow [2022-12-12 20:45:27,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 51 transitions, 234 flow [2022-12-12 20:45:27,159 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 51 transitions, 234 flow [2022-12-12 20:45:27,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-12 20:45:27,159 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:45:27,159 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 20:45:27,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 20:45:27,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 20:45:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:45:27,160 INFO L85 PathProgramCache]: Analyzing trace with hash -689224345, now seen corresponding path program 1 times [2022-12-12 20:45:27,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:45:27,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605973160] [2022-12-12 20:45:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:27,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:45:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:27,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:45:27,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605973160] [2022-12-12 20:45:27,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605973160] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:45:27,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975119558] [2022-12-12 20:45:27,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:27,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:45:27,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:45:27,463 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) [2022-12-12 20:45:27,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-12 20:45:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:27,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-12 20:45:27,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:45:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:27,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:45:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:27,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975119558] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 20:45:27,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 20:45:27,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2022-12-12 20:45:27,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227115650] [2022-12-12 20:45:27,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 20:45:27,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-12 20:45:27,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:45:27,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-12 20:45:27,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-12-12 20:45:27,870 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:45:27,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 51 transitions, 234 flow. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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) [2022-12-12 20:45:27,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:45:27,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:45:27,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:45:29,038 INFO L130 PetriNetUnfolder]: 1420/2135 cut-off events. [2022-12-12 20:45:29,038 INFO L131 PetriNetUnfolder]: For 260/260 co-relation queries the response was YES. [2022-12-12 20:45:29,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6562 conditions, 2135 events. 1420/2135 cut-off events. For 260/260 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9112 event pairs, 70 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 6210. Up to 1996 conditions per place. [2022-12-12 20:45:29,049 INFO L137 encePairwiseOnDemand]: 14/25 looper letters, 202 selfloop transitions, 97 changer transitions 8/307 dead transitions. [2022-12-12 20:45:29,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 307 transitions, 1989 flow [2022-12-12 20:45:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-12 20:45:29,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-12-12 20:45:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 307 transitions. [2022-12-12 20:45:29,055 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3961290322580645 [2022-12-12 20:45:29,056 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 33 predicate places. [2022-12-12 20:45:29,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 307 transitions, 1989 flow [2022-12-12 20:45:29,066 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 299 transitions, 1941 flow [2022-12-12 20:45:29,067 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 299 transitions, 1941 flow [2022-12-12 20:45:29,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 13 states have internal predecessors, (42), 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) [2022-12-12 20:45:29,069 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:45:29,069 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 20:45:29,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-12 20:45:29,275 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 [2022-12-12 20:45:29,275 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 20:45:29,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:45:29,276 INFO L85 PathProgramCache]: Analyzing trace with hash 577231468, now seen corresponding path program 1 times [2022-12-12 20:45:29,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:45:29,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627284726] [2022-12-12 20:45:29,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:29,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:45:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:29,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:45:29,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627284726] [2022-12-12 20:45:29,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627284726] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:45:29,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751864747] [2022-12-12 20:45:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:29,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:45:29,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:45:29,495 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) [2022-12-12 20:45:29,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-12 20:45:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:29,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-12 20:45:29,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:45:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:29,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:45:29,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:29,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751864747] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-12 20:45:29,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-12 20:45:29,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2022-12-12 20:45:29,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207936669] [2022-12-12 20:45:29,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:45:29,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 20:45:29,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:45:29,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 20:45:29,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-12 20:45:29,696 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:45:29,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 299 transitions, 1941 flow. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-12 20:45:29,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:45:29,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:45:29,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:45:30,021 INFO L130 PetriNetUnfolder]: 1862/2811 cut-off events. [2022-12-12 20:45:30,021 INFO L131 PetriNetUnfolder]: For 389/389 co-relation queries the response was YES. [2022-12-12 20:45:30,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11451 conditions, 2811 events. 1862/2811 cut-off events. For 389/389 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 12884 event pairs, 44 based on Foata normal form. 0/2345 useless extension candidates. Maximal degree in co-relation 10721. Up to 2700 conditions per place. [2022-12-12 20:45:30,034 INFO L137 encePairwiseOnDemand]: 15/25 looper letters, 420 selfloop transitions, 108 changer transitions 6/534 dead transitions. [2022-12-12 20:45:30,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 534 transitions, 4518 flow [2022-12-12 20:45:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 20:45:30,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 20:45:30,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2022-12-12 20:45:30,036 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2022-12-12 20:45:30,036 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 38 predicate places. [2022-12-12 20:45:30,036 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 534 transitions, 4518 flow [2022-12-12 20:45:30,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 528 transitions, 4467 flow [2022-12-12 20:45:30,049 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 528 transitions, 4467 flow [2022-12-12 20:45:30,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-12 20:45:30,049 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:45:30,049 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 20:45:30,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-12 20:45:30,257 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,SelfDestructingSolverStorable2 [2022-12-12 20:45:30,257 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 20:45:30,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:45:30,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1978756248, now seen corresponding path program 2 times [2022-12-12 20:45:30,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:45:30,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660991435] [2022-12-12 20:45:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:30,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:45:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:30,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:45:30,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660991435] [2022-12-12 20:45:30,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660991435] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:45:30,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278324230] [2022-12-12 20:45:30,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 20:45:30,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:45:30,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:45:30,536 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) [2022-12-12 20:45:30,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-12 20:45:30,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 20:45:30,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 20:45:30,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-12 20:45:30,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:45:30,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:30,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-12 20:45:30,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278324230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 20:45:30,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-12 20:45:30,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-12-12 20:45:30,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27855542] [2022-12-12 20:45:30,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 20:45:30,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-12 20:45:30,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:45:30,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-12 20:45:30,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-12 20:45:30,692 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:45:30,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 528 transitions, 4467 flow. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-12 20:45:30,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:45:30,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:45:30,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:45:31,055 INFO L130 PetriNetUnfolder]: 2264/3377 cut-off events. [2022-12-12 20:45:31,055 INFO L131 PetriNetUnfolder]: For 377/377 co-relation queries the response was YES. [2022-12-12 20:45:31,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17091 conditions, 3377 events. 2264/3377 cut-off events. For 377/377 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 15792 event pairs, 46 based on Foata normal form. 0/2855 useless extension candidates. Maximal degree in co-relation 16192. Up to 3250 conditions per place. [2022-12-12 20:45:31,075 INFO L137 encePairwiseOnDemand]: 19/25 looper letters, 618 selfloop transitions, 37 changer transitions 0/655 dead transitions. [2022-12-12 20:45:31,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 655 transitions, 6793 flow [2022-12-12 20:45:31,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-12 20:45:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-12 20:45:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 64 transitions. [2022-12-12 20:45:31,076 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4266666666666667 [2022-12-12 20:45:31,077 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 43 predicate places. [2022-12-12 20:45:31,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 655 transitions, 6793 flow [2022-12-12 20:45:31,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 655 transitions, 6793 flow [2022-12-12 20:45:31,095 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 655 transitions, 6793 flow [2022-12-12 20:45:31,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-12-12 20:45:31,096 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:45:31,096 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 20:45:31,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-12 20:45:31,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:45:31,302 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 20:45:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:45:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash -306959746, now seen corresponding path program 3 times [2022-12-12 20:45:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:45:31,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198134648] [2022-12-12 20:45:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:31,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:45:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:31,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:45:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198134648] [2022-12-12 20:45:31,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198134648] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:45:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025961092] [2022-12-12 20:45:31,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 20:45:31,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:45:31,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:45:31,480 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) [2022-12-12 20:45:31,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-12 20:45:31,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-12 20:45:31,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 20:45:31,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-12 20:45:31,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:45:31,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:31,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:45:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:31,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025961092] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 20:45:31,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 20:45:31,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2022-12-12 20:45:31,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193623062] [2022-12-12 20:45:31,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 20:45:31,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-12 20:45:31,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:45:31,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-12 20:45:31,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-12 20:45:31,727 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:45:31,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 655 transitions, 6793 flow. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 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) [2022-12-12 20:45:31,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:45:31,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:45:31,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:45:32,540 INFO L130 PetriNetUnfolder]: 3786/5677 cut-off events. [2022-12-12 20:45:32,540 INFO L131 PetriNetUnfolder]: For 456/456 co-relation queries the response was YES. [2022-12-12 20:45:32,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34322 conditions, 5677 events. 3786/5677 cut-off events. For 456/456 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 29215 event pairs, 42 based on Foata normal form. 0/4875 useless extension candidates. Maximal degree in co-relation 33046. Up to 5466 conditions per place. [2022-12-12 20:45:32,569 INFO L137 encePairwiseOnDemand]: 16/25 looper letters, 1088 selfloop transitions, 324 changer transitions 1/1413 dead transitions. [2022-12-12 20:45:32,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 1413 transitions, 17310 flow [2022-12-12 20:45:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-12 20:45:32,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-12 20:45:32,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 129 transitions. [2022-12-12 20:45:32,571 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39692307692307693 [2022-12-12 20:45:32,571 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 55 predicate places. [2022-12-12 20:45:32,571 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 1413 transitions, 17310 flow [2022-12-12 20:45:32,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 1412 transitions, 17298 flow [2022-12-12 20:45:32,601 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 1412 transitions, 17298 flow [2022-12-12 20:45:32,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 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) [2022-12-12 20:45:32,601 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:45:32,602 INFO L214 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] [2022-12-12 20:45:32,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-12 20:45:32,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:45:32,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 20:45:32,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:45:32,807 INFO L85 PathProgramCache]: Analyzing trace with hash -826761781, now seen corresponding path program 1 times [2022-12-12 20:45:32,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:45:32,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983758870] [2022-12-12 20:45:32,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:32,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:45:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:34,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:45:34,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983758870] [2022-12-12 20:45:34,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983758870] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:45:34,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105577371] [2022-12-12 20:45:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:45:34,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:45:34,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:45:34,295 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) [2022-12-12 20:45:34,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-12 20:45:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:45:34,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-12 20:45:34,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:45:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:35,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:45:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:45:36,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105577371] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 20:45:36,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 20:45:36,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 26 [2022-12-12 20:45:36,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855147773] [2022-12-12 20:45:36,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 20:45:36,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-12 20:45:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:45:36,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-12 20:45:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-12-12 20:45:36,257 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:45:36,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 1412 transitions, 17298 flow. Second operand has 28 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 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) [2022-12-12 20:45:36,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:45:36,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:45:36,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:46:10,567 INFO L130 PetriNetUnfolder]: 17318/26042 cut-off events. [2022-12-12 20:46:10,567 INFO L131 PetriNetUnfolder]: For 2452/2452 co-relation queries the response was YES. [2022-12-12 20:46:10,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183580 conditions, 26042 events. 17318/26042 cut-off events. For 2452/2452 co-relation queries the response was YES. Maximal size of possible extension queue 1270. Compared 173528 event pairs, 2 based on Foata normal form. 49/21841 useless extension candidates. Maximal degree in co-relation 174707. Up to 25443 conditions per place. [2022-12-12 20:46:10,828 INFO L137 encePairwiseOnDemand]: 10/25 looper letters, 3896 selfloop transitions, 3848 changer transitions 1150/8894 dead transitions. [2022-12-12 20:46:10,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 8894 transitions, 126850 flow [2022-12-12 20:46:10,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-12-12 20:46:10,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2022-12-12 20:46:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 1208 transitions. [2022-12-12 20:46:10,833 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3426950354609929 [2022-12-12 20:46:10,834 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 195 predicate places. [2022-12-12 20:46:10,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 227 places, 8894 transitions, 126850 flow [2022-12-12 20:46:10,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 7744 transitions, 109847 flow [2022-12-12 20:46:10,980 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 7744 transitions, 109847 flow [2022-12-12 20:46:10,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 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) [2022-12-12 20:46:10,981 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:46:10,981 INFO L214 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] [2022-12-12 20:46:10,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-12 20:46:11,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:46:11,189 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-12 20:46:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:46:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1686712789, now seen corresponding path program 2 times [2022-12-12 20:46:11,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:46:11,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430713087] [2022-12-12 20:46:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:46:11,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:46:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:46:13,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:46:13,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:46:13,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430713087] [2022-12-12 20:46:13,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430713087] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:46:13,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203254915] [2022-12-12 20:46:13,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-12 20:46:13,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:46:13,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:46:13,504 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) [2022-12-12 20:46:13,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-12 20:46:13,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-12 20:46:13,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 20:46:13,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-12 20:46:13,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:46:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:46:14,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:46:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:46:15,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203254915] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 20:46:15,589 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 20:46:15,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 27 [2022-12-12 20:46:15,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713652932] [2022-12-12 20:46:15,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 20:46:15,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-12-12 20:46:15,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:46:15,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-12-12 20:46:15,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2022-12-12 20:46:15,592 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:46:15,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 7744 transitions, 109847 flow. Second operand has 29 states, 28 states have (on average 2.4642857142857144) internal successors, (69), 28 states have internal predecessors, (69), 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) [2022-12-12 20:46:15,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:46:15,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:46:15,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:47:40,659 INFO L130 PetriNetUnfolder]: 35391/53501 cut-off events. [2022-12-12 20:47:40,660 INFO L131 PetriNetUnfolder]: For 4812/4812 co-relation queries the response was YES. [2022-12-12 20:47:40,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430525 conditions, 53501 events. 35391/53501 cut-off events. For 4812/4812 co-relation queries the response was YES. Maximal size of possible extension queue 2691. Compared 398372 event pairs, 8 based on Foata normal form. 115/44366 useless extension candidates. Maximal degree in co-relation 406291. Up to 52672 conditions per place. [2022-12-12 20:47:41,009 INFO L137 encePairwiseOnDemand]: 10/25 looper letters, 10088 selfloop transitions, 8698 changer transitions 1497/20283 dead transitions. [2022-12-12 20:47:41,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 20283 transitions, 329709 flow [2022-12-12 20:47:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-12-12 20:47:41,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2022-12-12 20:47:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 1514 transitions. [2022-12-12 20:47:41,014 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34605714285714284 [2022-12-12 20:47:41,014 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 344 predicate places. [2022-12-12 20:47:41,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 376 places, 20283 transitions, 329709 flow [2022-12-12 20:47:41,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 348 places, 18786 transitions, 304299 flow [2022-12-12 20:47:41,370 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 18786 transitions, 304299 flow [2022-12-12 20:47:41,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.4642857142857144) internal successors, (69), 28 states have internal predecessors, (69), 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) [2022-12-12 20:47:41,371 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:47:41,371 INFO L214 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] [2022-12-12 20:47:41,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-12 20:47:41,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:47:41,576 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 1 more)] === [2022-12-12 20:47:41,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:47:41,577 INFO L85 PathProgramCache]: Analyzing trace with hash -766321923, now seen corresponding path program 3 times [2022-12-12 20:47:41,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:47:41,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399665624] [2022-12-12 20:47:41,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:47:41,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:47:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:47:42,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:47:42,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:47:42,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399665624] [2022-12-12 20:47:42,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399665624] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:47:42,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114410339] [2022-12-12 20:47:42,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-12 20:47:42,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:47:42,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:47:42,675 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) [2022-12-12 20:47:42,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-12 20:47:42,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-12 20:47:42,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 20:47:42,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-12 20:47:42,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:47:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:47:43,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:47:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:47:46,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114410339] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 20:47:46,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 20:47:46,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 26 [2022-12-12 20:47:46,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195067864] [2022-12-12 20:47:46,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 20:47:46,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-12 20:47:46,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:47:46,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-12 20:47:46,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2022-12-12 20:47:46,762 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:47:46,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 18786 transitions, 304299 flow. Second operand has 28 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 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) [2022-12-12 20:47:46,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:47:46,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:47:46,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:51:17,807 INFO L130 PetriNetUnfolder]: 45108/67636 cut-off events. [2022-12-12 20:51:17,807 INFO L131 PetriNetUnfolder]: For 5528/5528 co-relation queries the response was YES. [2022-12-12 20:51:17,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611538 conditions, 67636 events. 45108/67636 cut-off events. For 5528/5528 co-relation queries the response was YES. Maximal size of possible extension queue 3693. Compared 515379 event pairs, 16 based on Foata normal form. 49/56475 useless extension candidates. Maximal degree in co-relation 585695. Up to 66807 conditions per place. [2022-12-12 20:51:18,340 INFO L137 encePairwiseOnDemand]: 11/25 looper letters, 13400 selfloop transitions, 10916 changer transitions 1688/26004 dead transitions. [2022-12-12 20:51:18,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 26004 transitions, 473787 flow [2022-12-12 20:51:18,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-12-12 20:51:18,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2022-12-12 20:51:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 883 transitions. [2022-12-12 20:51:18,351 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.34627450980392155 [2022-12-12 20:51:18,352 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 417 predicate places. [2022-12-12 20:51:18,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 449 places, 26004 transitions, 473787 flow [2022-12-12 20:51:18,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 425 places, 24316 transitions, 442158 flow [2022-12-12 20:51:18,917 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 24316 transitions, 442158 flow [2022-12-12 20:51:18,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 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) [2022-12-12 20:51:18,917 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:51:18,918 INFO L214 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] [2022-12-12 20:51:18,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-12 20:51:19,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:51:19,122 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 1 more)] === [2022-12-12 20:51:19,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:51:19,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1188089169, now seen corresponding path program 4 times [2022-12-12 20:51:19,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:51:19,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775244474] [2022-12-12 20:51:19,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:51:19,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:51:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:51:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:51:20,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:51:20,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775244474] [2022-12-12 20:51:20,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775244474] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:51:20,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079399990] [2022-12-12 20:51:20,190 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-12 20:51:20,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:51:20,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:51:20,191 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 20:51:20,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-12 20:51:20,336 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-12 20:51:20,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 20:51:20,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-12 20:51:20,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:51:20,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:51:20,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:51:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:51:22,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079399990] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 20:51:22,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 20:51:22,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 22 [2022-12-12 20:51:22,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979295473] [2022-12-12 20:51:22,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 20:51:22,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-12 20:51:22,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:51:22,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-12 20:51:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2022-12-12 20:51:22,684 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:51:22,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 24316 transitions, 442158 flow. Second operand has 24 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 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) [2022-12-12 20:51:22,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:51:22,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:51:22,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:56:54,709 INFO L130 PetriNetUnfolder]: 57136/85721 cut-off events. [2022-12-12 20:56:54,709 INFO L131 PetriNetUnfolder]: For 6918/6918 co-relation queries the response was YES. [2022-12-12 20:56:54,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860622 conditions, 85721 events. 57136/85721 cut-off events. For 6918/6918 co-relation queries the response was YES. Maximal size of possible extension queue 4459. Compared 672037 event pairs, 6 based on Foata normal form. 144/71599 useless extension candidates. Maximal degree in co-relation 827697. Up to 84892 conditions per place. [2022-12-12 20:56:55,297 INFO L137 encePairwiseOnDemand]: 14/25 looper letters, 16847 selfloop transitions, 11854 changer transitions 4441/33142 dead transitions. [2022-12-12 20:56:55,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 33142 transitions, 669761 flow [2022-12-12 20:56:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-12-12 20:56:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2022-12-12 20:56:55,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 976 transitions. [2022-12-12 20:56:55,300 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3718095238095238 [2022-12-12 20:56:55,300 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 496 predicate places. [2022-12-12 20:56:55,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 528 places, 33142 transitions, 669761 flow [2022-12-12 20:56:56,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 481 places, 28701 transitions, 577707 flow [2022-12-12 20:56:56,015 INFO L495 AbstractCegarLoop]: Abstraction has has 481 places, 28701 transitions, 577707 flow [2022-12-12 20:56:56,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0) internal successors, (69), 23 states have internal predecessors, (69), 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) [2022-12-12 20:56:56,015 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 20:56:56,016 INFO L214 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] [2022-12-12 20:56:56,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-12 20:56:56,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-12 20:56:56,221 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 1 more)] === [2022-12-12 20:56:56,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 20:56:56,221 INFO L85 PathProgramCache]: Analyzing trace with hash 404802170, now seen corresponding path program 5 times [2022-12-12 20:56:56,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 20:56:56,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558643755] [2022-12-12 20:56:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 20:56:56,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 20:56:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 20:57:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:57:00,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 20:57:00,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558643755] [2022-12-12 20:57:00,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558643755] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-12 20:57:00,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598011561] [2022-12-12 20:57:00,144 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-12 20:57:00,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-12 20:57:00,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 20:57:00,145 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-12 20:57:00,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-12 20:57:00,338 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-12-12 20:57:00,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-12 20:57:00,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 36 conjunts are in the unsatisfiable core [2022-12-12 20:57:00,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-12 20:57:01,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:57:01,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-12 20:57:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 20:57:20,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598011561] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-12 20:57:20,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-12 20:57:20,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2022-12-12 20:57:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831261718] [2022-12-12 20:57:20,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-12 20:57:20,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-12 20:57:20,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 20:57:20,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-12 20:57:20,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=914, Unknown=5, NotChecked=0, Total=1122 [2022-12-12 20:57:20,267 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-12 20:57:20,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 28701 transitions, 577707 flow. Second operand has 34 states, 33 states have (on average 2.090909090909091) internal successors, (69), 33 states have internal predecessors, (69), 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) [2022-12-12 20:57:20,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 20:57:20,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-12 20:57:20,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 20:57:38,313 WARN L233 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 189 DAG size of output: 116 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 20:58:13,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-12 20:58:15,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-12 20:58:17,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-12 20:58:19,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-12 20:58:28,260 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 137 DAG size of output: 135 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-12 20:58:46,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-12 20:59:23,084 WARN L233 SmtUtils]: Spent 11.90s on a formula simplification. DAG size of input: 219 DAG size of output: 117 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-12-12 20:59:34,113 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 [2022-12-12 20:59:34,113 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 20:59:34,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-12-12 20:59:34,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 20:59:34,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-12 20:59:34,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-12 20:59:34,894 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. [2022-12-12 20:59:34,895 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 20:59:34,895 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 20:59:34,896 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-12 20:59:34,896 INFO L445 BasicCegarLoop]: Path program histogram: [5, 3, 1, 1] [2022-12-12 20:59:34,898 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 20:59:34,898 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 20:59:34,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 08:59:34 BasicIcfg [2022-12-12 20:59:34,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 20:59:34,900 INFO L158 Benchmark]: Toolchain (without parser) took 852434.73ms. Allocated memory was 191.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 167.8MB in the beginning and 700.6MB in the end (delta: -532.8MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-12-12 20:59:34,900 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 167.7MB in the beginning and 167.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 20:59:34,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.80ms. Allocated memory is still 191.9MB. Free memory was 167.8MB in the beginning and 154.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-12-12 20:59:34,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.93ms. Allocated memory is still 191.9MB. Free memory was 154.2MB in the beginning and 152.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 20:59:34,901 INFO L158 Benchmark]: Boogie Preprocessor took 29.49ms. Allocated memory is still 191.9MB. Free memory was 152.1MB in the beginning and 151.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-12 20:59:34,901 INFO L158 Benchmark]: RCFGBuilder took 423.66ms. Allocated memory is still 191.9MB. Free memory was 151.0MB in the beginning and 132.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 20:59:34,901 INFO L158 Benchmark]: TraceAbstraction took 851666.01ms. Allocated memory was 191.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 131.1MB in the beginning and 700.6MB in the end (delta: -569.5MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-12-12 20:59:34,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 167.7MB in the beginning and 167.6MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.80ms. Allocated memory is still 191.9MB. Free memory was 167.8MB in the beginning and 154.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.93ms. Allocated memory is still 191.9MB. Free memory was 154.2MB in the beginning and 152.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.49ms. Allocated memory is still 191.9MB. Free memory was 152.1MB in the beginning and 151.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 423.66ms. Allocated memory is still 191.9MB. Free memory was 151.0MB in the beginning and 132.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 851666.01ms. Allocated memory was 191.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 131.1MB in the beginning and 700.6MB in the end (delta: -569.5MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 97 PlacesBefore, 32 PlacesAfterwards, 95 TransitionsBefore, 25 TransitionsAfterwards, 1010 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 43 TrivialYvCompositions, 22 ConcurrentYvCompositions, 5 ChoiceCompositions, 70 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 553, independent: 540, independent conditional: 540, independent unconditional: 0, dependent: 13, dependent conditional: 13, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 553, independent: 540, independent conditional: 0, independent unconditional: 540, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 553, independent: 540, independent conditional: 0, independent unconditional: 540, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 553, independent: 540, independent conditional: 0, independent unconditional: 540, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 516, independent: 506, independent conditional: 0, independent unconditional: 506, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 516, independent: 506, independent conditional: 0, independent unconditional: 506, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 553, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 516, unknown conditional: 0, unknown unconditional: 516] , Statistics on independence cache: Total cache size (in pairs): 763, Positive cache size: 753, Positive conditional cache size: 0, Positive unconditional cache size: 753, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 122 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 126 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 1.9s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 851.5s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 801.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 4977 SdHoareTripleChecker+Valid, 44.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4977 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 42.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 990 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14047 IncrementalHoareTripleChecker+Invalid, 15041 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 990 mSolverCounterUnsat, 10 mSDtfsCounter, 14047 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1016 GetRequests, 260 SyntacticMatches, 5 SemanticMatches, 750 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37464 ImplicationChecksByTransitivity, 224.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577707occurred in iteration=9, InterpolantAutomatonStates: 583, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 166207 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 41.8s InterpolantComputationTime, 421 NumberOfCodeBlocks, 421 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 574 ConstructedInterpolants, 0 QuantifiedInterpolants, 30248 SizeOfPredicates, 93 NumberOfNonLiveVariables, 1578 ConjunctsInSsa, 219 ConjunctsInUnsatCore, 27 InterpolantComputations, 3 PerfectInterpolantSequences, 2/50 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