/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:39:38,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:39:38,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:39:38,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:39:38,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:39:38,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:39:38,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:39:38,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:39:38,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:39:38,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:39:38,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:39:38,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:39:38,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:39:38,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:39:38,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:39:38,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:39:38,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:39:38,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:39:38,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:39:38,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:39:38,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:39:38,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:39:38,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:39:38,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:39:38,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:39:38,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:39:38,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:39:38,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:39:38,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:39:38,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:39:38,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:39:38,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:39:38,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:39:38,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:39:38,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:39:38,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:39:38,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:39:38,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:39:38,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:39:38,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:39:38,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:39:38,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 16:39:38,679 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:39:38,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:39:38,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:39:38,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:39:38,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:39:38,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:39:38,682 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:39:38,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:39:38,683 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:39:38,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:39:38,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:39:38,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:39:38,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:39:38,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:39:38,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:39:38,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:39:38,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:39:38,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:39:38,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:39:38,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:39:38,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:39:38,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:39:38,686 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:39:38,686 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:39:38,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:39:39,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:39:39,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:39:39,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:39:39,036 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:39:39,036 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:39:39,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:39:40,127 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:39:40,432 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:39:40,432 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:39:40,453 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a8c27e7/001c7a66c2634ec0ac1213d58aa529c5/FLAG1e856a860 [2022-12-06 16:39:40,471 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a8c27e7/001c7a66c2634ec0ac1213d58aa529c5 [2022-12-06 16:39:40,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:39:40,475 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:39:40,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:39:40,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:39:40,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:39:40,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:40,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8623dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40, skipping insertion in model container [2022-12-06 16:39:40,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:40,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:39:40,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:39:40,701 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:39:40,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,866 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,869 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:39:40,882 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:39:40,895 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-06 16:39:40,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,919 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 16:39:40,930 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 16:39:40,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:39:40,967 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:39:40,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40 WrapperNode [2022-12-06 16:39:40,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:39:40,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:39:40,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:39:40,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:39:40,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,027 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-06 16:39:41,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:39:41,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:39:41,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:39:41,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:39:41,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:39:41,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:39:41,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:39:41,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:39:41,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (1/1) ... [2022-12-06 16:39:41,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:39:41,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:39:41,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 16:39:41,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 16:39:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:39:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 16:39:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:39:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:39:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:39:41,137 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-06 16:39:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-06 16:39:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-06 16:39:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-06 16:39:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-06 16:39:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-06 16:39:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:39:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 16:39:41,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:39:41,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:39:41,139 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:39:41,305 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:39:41,307 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:39:41,439 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:39:41,445 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:39:41,445 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:39:41,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:39:41 BoogieIcfgContainer [2022-12-06 16:39:41,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:39:41,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:39:41,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:39:41,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:39:41,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:39:40" (1/3) ... [2022-12-06 16:39:41,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c985ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:39:41, skipping insertion in model container [2022-12-06 16:39:41,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:39:40" (2/3) ... [2022-12-06 16:39:41,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c985ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:39:41, skipping insertion in model container [2022-12-06 16:39:41,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:39:41" (3/3) ... [2022-12-06 16:39:41,455 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-06 16:39:41,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:39:41,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:39:41,472 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:39:41,530 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:39:41,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 16:39:41,640 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2022-12-06 16:39:41,640 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:39:41,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-06 16:39:41,645 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2022-12-06 16:39:41,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2022-12-06 16:39:41,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:39:41,672 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;@72e61cbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:39:41,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 16:39:41,708 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2022-12-06 16:39:41,708 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:39:41,709 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:41,709 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:41,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:41,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1911347137, now seen corresponding path program 1 times [2022-12-06 16:39:41,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:41,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649841164] [2022-12-06 16:39:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:41,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:42,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:42,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649841164] [2022-12-06 16:39:42,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649841164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:42,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:42,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:42,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305253578] [2022-12-06 16:39:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:42,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:42,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:42,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:42,543 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:39:42,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:42,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:42,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:39:42,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:43,017 INFO L130 PetriNetUnfolder]: 348/830 cut-off events. [2022-12-06 16:39:43,017 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-06 16:39:43,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1444 conditions, 830 events. 348/830 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4716 event pairs, 40 based on Foata normal form. 35/837 useless extension candidates. Maximal degree in co-relation 1409. Up to 176 conditions per place. [2022-12-06 16:39:43,025 INFO L137 encePairwiseOnDemand]: 74/85 looper letters, 23 selfloop transitions, 6 changer transitions 47/127 dead transitions. [2022-12-06 16:39:43,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 127 transitions, 415 flow [2022-12-06 16:39:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:39:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:39:43,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 901 transitions. [2022-12-06 16:39:43,040 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8153846153846154 [2022-12-06 16:39:43,044 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 12 predicate places. [2022-12-06 16:39:43,044 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 127 transitions, 415 flow [2022-12-06 16:39:43,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:43,045 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:43,045 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:43,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:39:43,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:43,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:43,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1020593024, now seen corresponding path program 1 times [2022-12-06 16:39:43,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:43,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781006700] [2022-12-06 16:39:43,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:43,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:43,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:43,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781006700] [2022-12-06 16:39:43,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781006700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:43,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:43,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:43,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125131803] [2022-12-06 16:39:43,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:43,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:43,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:43,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:43,299 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:39:43,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 127 transitions, 415 flow. Second operand has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:43,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:43,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:39:43,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:43,677 INFO L130 PetriNetUnfolder]: 397/981 cut-off events. [2022-12-06 16:39:43,677 INFO L131 PetriNetUnfolder]: For 66/348 co-relation queries the response was YES. [2022-12-06 16:39:43,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2435 conditions, 981 events. 397/981 cut-off events. For 66/348 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6169 event pairs, 23 based on Foata normal form. 23/980 useless extension candidates. Maximal degree in co-relation 2393. Up to 217 conditions per place. [2022-12-06 16:39:43,688 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 26 selfloop transitions, 12 changer transitions 159/248 dead transitions. [2022-12-06 16:39:43,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 248 transitions, 1299 flow [2022-12-06 16:39:43,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:39:43,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:39:43,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 900 transitions. [2022-12-06 16:39:43,691 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8144796380090498 [2022-12-06 16:39:43,692 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 24 predicate places. [2022-12-06 16:39:43,692 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 248 transitions, 1299 flow [2022-12-06 16:39:43,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.0) internal successors, (455), 7 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:43,693 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:43,694 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:43,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 16:39:43,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:43,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:43,695 INFO L85 PathProgramCache]: Analyzing trace with hash -764644193, now seen corresponding path program 1 times [2022-12-06 16:39:43,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:43,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336760976] [2022-12-06 16:39:43,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:43,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:43,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:43,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:43,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336760976] [2022-12-06 16:39:43,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336760976] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:43,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:43,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:43,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903746604] [2022-12-06 16:39:43,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:43,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:43,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:43,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:43,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:43,968 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:39:43,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 248 transitions, 1299 flow. Second operand has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:43,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:43,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:39:43,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:44,296 INFO L130 PetriNetUnfolder]: 400/1017 cut-off events. [2022-12-06 16:39:44,297 INFO L131 PetriNetUnfolder]: For 204/995 co-relation queries the response was YES. [2022-12-06 16:39:44,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3249 conditions, 1017 events. 400/1017 cut-off events. For 204/995 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6641 event pairs, 12 based on Foata normal form. 41/1037 useless extension candidates. Maximal degree in co-relation 3200. Up to 228 conditions per place. [2022-12-06 16:39:44,302 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 27 selfloop transitions, 16 changer transitions 231/325 dead transitions. [2022-12-06 16:39:44,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 325 transitions, 2312 flow [2022-12-06 16:39:44,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:39:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:39:44,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 903 transitions. [2022-12-06 16:39:44,306 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8171945701357466 [2022-12-06 16:39:44,307 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 36 predicate places. [2022-12-06 16:39:44,307 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 325 transitions, 2312 flow [2022-12-06 16:39:44,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.14285714285714) internal successors, (456), 7 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:44,308 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:44,308 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:44,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 16:39:44,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:44,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:44,309 INFO L85 PathProgramCache]: Analyzing trace with hash -196007805, now seen corresponding path program 1 times [2022-12-06 16:39:44,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:44,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440373284] [2022-12-06 16:39:44,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:44,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:44,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:44,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:44,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440373284] [2022-12-06 16:39:44,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440373284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:44,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:44,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 16:39:44,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957378552] [2022-12-06 16:39:44,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:44,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 16:39:44,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:44,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 16:39:44,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-06 16:39:44,545 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-06 16:39:44,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 325 transitions, 2312 flow. Second operand has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:44,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:44,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-06 16:39:44,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:44,868 INFO L130 PetriNetUnfolder]: 767/2029 cut-off events. [2022-12-06 16:39:44,868 INFO L131 PetriNetUnfolder]: For 508/828 co-relation queries the response was YES. [2022-12-06 16:39:44,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5372 conditions, 2029 events. 767/2029 cut-off events. For 508/828 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16771 event pairs, 36 based on Foata normal form. 6/1916 useless extension candidates. Maximal degree in co-relation 5319. Up to 414 conditions per place. [2022-12-06 16:39:44,886 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 35 selfloop transitions, 17 changer transitions 43/330 dead transitions. [2022-12-06 16:39:44,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 330 transitions, 2291 flow [2022-12-06 16:39:44,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 16:39:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 16:39:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 728 transitions. [2022-12-06 16:39:44,888 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8564705882352941 [2022-12-06 16:39:44,889 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 45 predicate places. [2022-12-06 16:39:44,889 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 330 transitions, 2291 flow [2022-12-06 16:39:44,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.66666666666667) internal successors, (418), 6 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:44,890 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:44,890 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:44,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 16:39:44,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash -652830472, now seen corresponding path program 1 times [2022-12-06 16:39:44,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:44,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103402717] [2022-12-06 16:39:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:44,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:45,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:45,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:45,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103402717] [2022-12-06 16:39:45,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103402717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:45,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:45,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:45,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790766006] [2022-12-06 16:39:45,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:45,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:45,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:45,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:45,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:45,042 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-06 16:39:45,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 330 transitions, 2291 flow. Second operand has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:45,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:45,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-06 16:39:45,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:45,358 INFO L130 PetriNetUnfolder]: 470/1412 cut-off events. [2022-12-06 16:39:45,359 INFO L131 PetriNetUnfolder]: For 622/955 co-relation queries the response was YES. [2022-12-06 16:39:45,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3932 conditions, 1412 events. 470/1412 cut-off events. For 622/955 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 11420 event pairs, 7 based on Foata normal form. 62/1430 useless extension candidates. Maximal degree in co-relation 3875. Up to 330 conditions per place. [2022-12-06 16:39:45,372 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 35 selfloop transitions, 44 changer transitions 94/250 dead transitions. [2022-12-06 16:39:45,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 250 transitions, 1677 flow [2022-12-06 16:39:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-06 16:39:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-06 16:39:45,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 947 transitions. [2022-12-06 16:39:45,375 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8570135746606334 [2022-12-06 16:39:45,377 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 57 predicate places. [2022-12-06 16:39:45,377 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 250 transitions, 1677 flow [2022-12-06 16:39:45,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.57142857142857) internal successors, (487), 7 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:45,377 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:45,378 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:45,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 16:39:45,378 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:45,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash -538179469, now seen corresponding path program 1 times [2022-12-06 16:39:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:45,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452129022] [2022-12-06 16:39:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:45,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:45,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452129022] [2022-12-06 16:39:45,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452129022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:45,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:45,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:39:45,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784301357] [2022-12-06 16:39:45,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:45,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:39:45,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:45,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:39:45,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:39:45,558 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 85 [2022-12-06 16:39:45,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 250 transitions, 1677 flow. Second operand has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:45,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:45,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 85 [2022-12-06 16:39:45,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:45,871 INFO L130 PetriNetUnfolder]: 412/1180 cut-off events. [2022-12-06 16:39:45,871 INFO L131 PetriNetUnfolder]: For 876/1364 co-relation queries the response was YES. [2022-12-06 16:39:45,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4029 conditions, 1180 events. 412/1180 cut-off events. For 876/1364 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 9416 event pairs, 2 based on Foata normal form. 94/1238 useless extension candidates. Maximal degree in co-relation 3968. Up to 300 conditions per place. [2022-12-06 16:39:45,881 INFO L137 encePairwiseOnDemand]: 75/85 looper letters, 32 selfloop transitions, 48 changer transitions 47/200 dead transitions. [2022-12-06 16:39:45,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 200 transitions, 1477 flow [2022-12-06 16:39:45,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-06 16:39:45,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-06 16:39:45,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1150 transitions. [2022-12-06 16:39:45,885 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8455882352941176 [2022-12-06 16:39:45,887 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 54 predicate places. [2022-12-06 16:39:45,888 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 200 transitions, 1477 flow [2022-12-06 16:39:45,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.5) internal successors, (556), 8 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:45,888 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:45,888 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:45,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-06 16:39:45,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:45,889 INFO L85 PathProgramCache]: Analyzing trace with hash -718899415, now seen corresponding path program 1 times [2022-12-06 16:39:45,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:45,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563271932] [2022-12-06 16:39:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:46,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:46,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563271932] [2022-12-06 16:39:46,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563271932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:46,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:46,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:46,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382511110] [2022-12-06 16:39:46,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:46,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:46,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:46,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:46,092 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 85 [2022-12-06 16:39:46,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 200 transitions, 1477 flow. Second operand has 7 states, 7 states have (on average 63.857142857142854) internal successors, (447), 7 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:46,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:46,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 85 [2022-12-06 16:39:46,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:46,321 INFO L130 PetriNetUnfolder]: 594/1521 cut-off events. [2022-12-06 16:39:46,321 INFO L131 PetriNetUnfolder]: For 1601/2620 co-relation queries the response was YES. [2022-12-06 16:39:46,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5485 conditions, 1521 events. 594/1521 cut-off events. For 1601/2620 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 12561 event pairs, 2 based on Foata normal form. 28/1438 useless extension candidates. Maximal degree in co-relation 5416. Up to 439 conditions per place. [2022-12-06 16:39:46,335 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 44 selfloop transitions, 25 changer transitions 53/227 dead transitions. [2022-12-06 16:39:46,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 227 transitions, 1890 flow [2022-12-06 16:39:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 16:39:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 16:39:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 531 transitions. [2022-12-06 16:39:46,338 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7808823529411765 [2022-12-06 16:39:46,338 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 61 predicate places. [2022-12-06 16:39:46,338 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 227 transitions, 1890 flow [2022-12-06 16:39:46,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.857142857142854) internal successors, (447), 7 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:46,339 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:46,339 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:46,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-06 16:39:46,339 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)] === [2022-12-06 16:39:46,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1433216701, now seen corresponding path program 2 times [2022-12-06 16:39:46,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:46,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820157658] [2022-12-06 16:39:46,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:46,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:46,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820157658] [2022-12-06 16:39:46,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820157658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:46,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:46,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:39:46,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711491462] [2022-12-06 16:39:46,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:46,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:39:46,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:39:46,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:39:46,553 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:39:46,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 227 transitions, 1890 flow. Second operand has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:46,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:46,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:39:46,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:46,936 INFO L130 PetriNetUnfolder]: 1069/2659 cut-off events. [2022-12-06 16:39:46,936 INFO L131 PetriNetUnfolder]: For 2070/3393 co-relation queries the response was YES. [2022-12-06 16:39:46,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9692 conditions, 2659 events. 1069/2659 cut-off events. For 2070/3393 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 24918 event pairs, 1 based on Foata normal form. 29/2477 useless extension candidates. Maximal degree in co-relation 9616. Up to 823 conditions per place. [2022-12-06 16:39:46,991 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 44 selfloop transitions, 32 changer transitions 67/251 dead transitions. [2022-12-06 16:39:46,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 251 transitions, 2330 flow [2022-12-06 16:39:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:39:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:39:46,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 797 transitions. [2022-12-06 16:39:46,993 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7813725490196078 [2022-12-06 16:39:46,994 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 72 predicate places. [2022-12-06 16:39:46,994 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 251 transitions, 2330 flow [2022-12-06 16:39:46,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:46,995 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:46,995 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:46,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-06 16:39:46,995 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)] === [2022-12-06 16:39:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash -2093262887, now seen corresponding path program 3 times [2022-12-06 16:39:46,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:46,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407772581] [2022-12-06 16:39:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:47,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407772581] [2022-12-06 16:39:47,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407772581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:47,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:47,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:39:47,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240569009] [2022-12-06 16:39:47,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:47,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:39:47,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:47,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:39:47,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:39:47,149 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 85 [2022-12-06 16:39:47,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 251 transitions, 2330 flow. Second operand has 8 states, 8 states have (on average 63.5) internal successors, (508), 8 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:47,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:47,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 85 [2022-12-06 16:39:47,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:47,666 INFO L130 PetriNetUnfolder]: 1441/3670 cut-off events. [2022-12-06 16:39:47,667 INFO L131 PetriNetUnfolder]: For 2500/3608 co-relation queries the response was YES. [2022-12-06 16:39:47,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13239 conditions, 3670 events. 1441/3670 cut-off events. For 2500/3608 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 36701 event pairs, 2 based on Foata normal form. 32/3421 useless extension candidates. Maximal degree in co-relation 13155. Up to 1127 conditions per place. [2022-12-06 16:39:47,688 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 22 selfloop transitions, 15 changer transitions 131/273 dead transitions. [2022-12-06 16:39:47,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 273 transitions, 2844 flow [2022-12-06 16:39:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:39:47,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:39:47,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 782 transitions. [2022-12-06 16:39:47,691 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2022-12-06 16:39:47,692 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 83 predicate places. [2022-12-06 16:39:47,692 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 273 transitions, 2844 flow [2022-12-06 16:39:47,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.5) internal successors, (508), 8 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:47,693 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:47,693 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:47,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-06 16:39:47,693 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)] === [2022-12-06 16:39:47,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:47,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1218813295, now seen corresponding path program 4 times [2022-12-06 16:39:47,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:47,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594554390] [2022-12-06 16:39:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:47,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:47,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:47,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594554390] [2022-12-06 16:39:47,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594554390] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:47,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:47,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 16:39:47,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94471569] [2022-12-06 16:39:47,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:47,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 16:39:47,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:47,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 16:39:47,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-06 16:39:47,869 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-12-06 16:39:47,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 273 transitions, 2844 flow. Second operand has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:47,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:47,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-12-06 16:39:47,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:48,453 INFO L130 PetriNetUnfolder]: 2049/4884 cut-off events. [2022-12-06 16:39:48,453 INFO L131 PetriNetUnfolder]: For 3905/6332 co-relation queries the response was YES. [2022-12-06 16:39:48,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18153 conditions, 4884 events. 2049/4884 cut-off events. For 3905/6332 co-relation queries the response was YES. Maximal size of possible extension queue 761. Compared 50894 event pairs, 0 based on Foata normal form. 50/4535 useless extension candidates. Maximal degree in co-relation 18062. Up to 1623 conditions per place. [2022-12-06 16:39:48,480 INFO L137 encePairwiseOnDemand]: 73/85 looper letters, 11 selfloop transitions, 7 changer transitions 236/310 dead transitions. [2022-12-06 16:39:48,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 310 transitions, 3725 flow [2022-12-06 16:39:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 16:39:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 16:39:48,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 799 transitions. [2022-12-06 16:39:48,482 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7833333333333333 [2022-12-06 16:39:48,482 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 94 predicate places. [2022-12-06 16:39:48,483 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 310 transitions, 3725 flow [2022-12-06 16:39:48,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 65.25) internal successors, (522), 8 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:48,483 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:39:48,483 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:48,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-06 16:39:48,484 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 16:39:48,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:39:48,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1278814895, now seen corresponding path program 5 times [2022-12-06 16:39:48,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:39:48,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447332435] [2022-12-06 16:39:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:39:48,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:39:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 16:39:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 16:39:48,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 16:39:48,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447332435] [2022-12-06 16:39:48,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447332435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 16:39:48,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 16:39:48,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 16:39:48,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927641426] [2022-12-06 16:39:48,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 16:39:48,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 16:39:48,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 16:39:48,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 16:39:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-06 16:39:48,629 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-12-06 16:39:48,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 310 transitions, 3725 flow. Second operand has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:48,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 16:39:48,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-12-06 16:39:48,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 16:39:49,281 INFO L130 PetriNetUnfolder]: 2476/6041 cut-off events. [2022-12-06 16:39:49,281 INFO L131 PetriNetUnfolder]: For 4882/7011 co-relation queries the response was YES. [2022-12-06 16:39:49,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22351 conditions, 6041 events. 2476/6041 cut-off events. For 4882/7011 co-relation queries the response was YES. Maximal size of possible extension queue 966. Compared 65930 event pairs, 1 based on Foata normal form. 35/5604 useless extension candidates. Maximal degree in co-relation 22255. Up to 1970 conditions per place. [2022-12-06 16:39:49,312 INFO L137 encePairwiseOnDemand]: 77/85 looper letters, 0 selfloop transitions, 0 changer transitions 326/326 dead transitions. [2022-12-06 16:39:49,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 326 transitions, 4307 flow [2022-12-06 16:39:49,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-06 16:39:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-06 16:39:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 486 transitions. [2022-12-06 16:39:49,314 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8168067226890756 [2022-12-06 16:39:49,314 INFO L294 CegarLoopForPetriNet]: 79 programPoint places, 98 predicate places. [2022-12-06 16:39:49,314 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 326 transitions, 4307 flow [2022-12-06 16:39:49,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.14285714285714) internal successors, (477), 7 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 16:39:49,320 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-06 16:39:49,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-06 16:39:49,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-06 16:39:49,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-06 16:39:49,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-06 16:39:49,322 INFO L458 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2022-12-06 16:39:49,324 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:39:49,324 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:39:49,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:39:49 BasicIcfg [2022-12-06 16:39:49,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:39:49,328 INFO L158 Benchmark]: Toolchain (without parser) took 8853.96ms. Allocated memory was 181.4MB in the beginning and 378.5MB in the end (delta: 197.1MB). Free memory was 157.1MB in the beginning and 184.9MB in the end (delta: -27.8MB). Peak memory consumption was 169.9MB. Max. memory is 8.0GB. [2022-12-06 16:39:49,329 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:39:49,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.43ms. Allocated memory is still 181.4MB. Free memory was 157.1MB in the beginning and 133.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-12-06 16:39:49,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.28ms. Allocated memory is still 181.4MB. Free memory was 133.5MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:39:49,329 INFO L158 Benchmark]: Boogie Preprocessor took 34.03ms. Allocated memory is still 181.4MB. Free memory was 131.4MB in the beginning and 129.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 16:39:49,331 INFO L158 Benchmark]: RCFGBuilder took 385.02ms. Allocated memory is still 181.4MB. Free memory was 129.8MB in the beginning and 116.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 16:39:49,331 INFO L158 Benchmark]: TraceAbstraction took 7878.65ms. Allocated memory was 181.4MB in the beginning and 378.5MB in the end (delta: 197.1MB). Free memory was 116.2MB in the beginning and 184.9MB in the end (delta: -68.7MB). Peak memory consumption was 129.0MB. Max. memory is 8.0GB. [2022-12-06 16:39:49,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 491.43ms. Allocated memory is still 181.4MB. Free memory was 157.1MB in the beginning and 133.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.28ms. Allocated memory is still 181.4MB. Free memory was 133.5MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.03ms. Allocated memory is still 181.4MB. Free memory was 131.4MB in the beginning and 129.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 385.02ms. Allocated memory is still 181.4MB. Free memory was 129.8MB in the beginning and 116.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 7878.65ms. Allocated memory was 181.4MB in the beginning and 378.5MB in the end (delta: 197.1MB). Free memory was 116.2MB in the beginning and 184.9MB in the end (delta: -68.7MB). Peak memory consumption was 129.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 546 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 546 mSDsluCounter, 693 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 527 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 848 IncrementalHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 166 mSDtfsCounter, 848 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4307occurred in iteration=11, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 635 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 624 ConstructedInterpolants, 0 QuantifiedInterpolants, 2812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-06 16:39:49,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...