/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:49:41,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:49:41,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:49:41,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:49:41,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:49:41,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:49:41,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:49:41,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:49:41,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:49:41,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:49:41,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:49:41,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:49:41,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:49:41,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:49:41,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:49:41,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:49:41,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:49:41,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:49:41,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:49:41,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:49:41,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:49:41,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:49:41,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:49:41,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:49:41,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:49:41,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:49:41,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:49:41,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:49:41,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:49:41,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:49:41,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:49:41,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:49:41,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:49:41,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:49:41,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:49:41,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:49:41,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:49:41,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:49:41,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:49:41,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:49:41,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:49:41,882 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 [2022-12-11 21:49:41,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:49:41,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:49:41,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:49:41,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:49:41,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:49:41,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:49:41,921 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:49:41,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:49:41,921 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:49:41,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:49:41,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:49:41,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:49:41,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:49:41,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:49:41,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:49:41,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:49:41,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:49:41,923 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:49:41,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:49:41,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:49:41,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:49:41,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:49:41,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:49:41,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:49:41,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:49:41,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:49:41,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:49:41,925 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:49:41,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:49:41,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:49:41,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:49:41,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:49:42,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:49:42,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:49:42,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:49:42,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:49:42,244 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:49:42,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-12-11 21:49:43,331 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:49:43,565 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:49:43,566 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-12-11 21:49:43,573 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a1254d1b/1e78a0ab53c84696aa3e7db09e78ddaa/FLAG7a94eaf39 [2022-12-11 21:49:43,587 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a1254d1b/1e78a0ab53c84696aa3e7db09e78ddaa [2022-12-11 21:49:43,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:49:43,590 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:49:43,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:49:43,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:49:43,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:49:43,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:43,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c7f3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43, skipping insertion in model container [2022-12-11 21:49:43,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:43,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:49:43,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:49:43,795 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,850 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-12-11 21:49:43,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:49:43,872 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:49:43,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-11 21:49:43,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-11 21:49:43,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-12-11 21:49:43,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:49:43,943 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:49:43,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43 WrapperNode [2022-12-11 21:49:43,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:49:43,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:49:43,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:49:43,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:49:43,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:43,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,016 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 289 [2022-12-11 21:49:44,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:49:44,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:49:44,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:49:44,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:49:44,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,058 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:49:44,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:49:44,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:49:44,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:49:44,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (1/1) ... [2022-12-11 21:49:44,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:49:44,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:49:44,107 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) [2022-12-11 21:49:44,109 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 [2022-12-11 21:49:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:49:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:49:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:49:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 21:49:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-11 21:49:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-11 21:49:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-11 21:49:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-11 21:49:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-11 21:49:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-11 21:49:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-11 21:49:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-11 21:49:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:49:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-11 21:49:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-11 21:49:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-11 21:49:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-11 21:49:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-11 21:49:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-11 21:49:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-11 21:49:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:49:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:49:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:49:44,144 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:49:44,318 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:49:44,319 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:49:44,726 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:49:44,946 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:49:44,946 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-11 21:49:44,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:49:44 BoogieIcfgContainer [2022-12-11 21:49:44,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:49:44,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:49:44,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:49:44,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:49:44,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:49:43" (1/3) ... [2022-12-11 21:49:44,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5c1636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:49:44, skipping insertion in model container [2022-12-11 21:49:44,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:49:43" (2/3) ... [2022-12-11 21:49:44,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5c1636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:49:44, skipping insertion in model container [2022-12-11 21:49:44,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:49:44" (3/3) ... [2022-12-11 21:49:44,960 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-12-11 21:49:44,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:49:44,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:49:44,976 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:49:45,090 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-11 21:49:45,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 248 transitions, 568 flow [2022-12-11 21:49:45,240 INFO L130 PetriNetUnfolder]: 18/220 cut-off events. [2022-12-11 21:49:45,241 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-11 21:49:45,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 220 events. 18/220 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 190. Up to 3 conditions per place. [2022-12-11 21:49:45,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 248 transitions, 568 flow [2022-12-11 21:49:45,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 212 transitions, 472 flow [2022-12-11 21:49:45,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:49:45,280 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;@9e5a554, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:49:45,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-11 21:49:45,349 INFO L130 PetriNetUnfolder]: 18/211 cut-off events. [2022-12-11 21:49:45,349 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-11 21:49:45,349 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:49:45,350 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:49:45,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:49:45,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:49:45,356 INFO L85 PathProgramCache]: Analyzing trace with hash 209662522, now seen corresponding path program 1 times [2022-12-11 21:49:45,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:49:45,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240571729] [2022-12-11 21:49:45,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:49:45,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:49:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:49:45,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:45,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:49:45,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240571729] [2022-12-11 21:49:45,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240571729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:49:45,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:49:45,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-11 21:49:45,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180657029] [2022-12-11 21:49:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:49:45,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-11 21:49:45,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:49:45,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-11 21:49:45,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-11 21:49:45,789 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 252 [2022-12-11 21:49:45,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 212 transitions, 472 flow. Second operand has 2 states, 2 states have (on average 215.0) internal successors, (430), 2 states have internal predecessors, (430), 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) [2022-12-11 21:49:45,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:49:45,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 252 [2022-12-11 21:49:45,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:49:46,392 INFO L130 PetriNetUnfolder]: 1084/2329 cut-off events. [2022-12-11 21:49:46,393 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2022-12-11 21:49:46,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4446 conditions, 2329 events. 1084/2329 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 13048 event pairs, 627 based on Foata normal form. 309/2426 useless extension candidates. Maximal degree in co-relation 4157. Up to 1445 conditions per place. [2022-12-11 21:49:46,421 INFO L137 encePairwiseOnDemand]: 243/252 looper letters, 30 selfloop transitions, 0 changer transitions 4/203 dead transitions. [2022-12-11 21:49:46,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 203 transitions, 514 flow [2022-12-11 21:49:46,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-11 21:49:46,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-11 21:49:46,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 447 transitions. [2022-12-11 21:49:46,435 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8869047619047619 [2022-12-11 21:49:46,439 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 1 predicate places. [2022-12-11 21:49:46,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 203 transitions, 514 flow [2022-12-11 21:49:46,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 199 transitions, 506 flow [2022-12-11 21:49:46,457 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 199 transitions, 506 flow [2022-12-11 21:49:46,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 215.0) internal successors, (430), 2 states have internal predecessors, (430), 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) [2022-12-11 21:49:46,457 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:49:46,457 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:49:46,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:49:46,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:49:46,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:49:46,459 INFO L85 PathProgramCache]: Analyzing trace with hash -798514532, now seen corresponding path program 1 times [2022-12-11 21:49:46,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:49:46,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284782406] [2022-12-11 21:49:46,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:49:46,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:49:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:49:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:47,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:49:47,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284782406] [2022-12-11 21:49:47,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284782406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:49:47,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:49:47,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:49:47,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849454045] [2022-12-11 21:49:47,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:49:47,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:49:47,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:49:47,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:49:47,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:49:47,142 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 252 [2022-12-11 21:49:47,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 199 transitions, 506 flow. Second operand has 6 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 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) [2022-12-11 21:49:47,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:49:47,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 252 [2022-12-11 21:49:47,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:49:48,525 INFO L130 PetriNetUnfolder]: 3024/6476 cut-off events. [2022-12-11 21:49:48,525 INFO L131 PetriNetUnfolder]: For 3223/3525 co-relation queries the response was YES. [2022-12-11 21:49:48,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16286 conditions, 6476 events. 3024/6476 cut-off events. For 3223/3525 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 48675 event pairs, 1305 based on Foata normal form. 1/5847 useless extension candidates. Maximal degree in co-relation 15867. Up to 3997 conditions per place. [2022-12-11 21:49:48,597 INFO L137 encePairwiseOnDemand]: 241/252 looper letters, 95 selfloop transitions, 10 changer transitions 4/258 dead transitions. [2022-12-11 21:49:48,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 258 transitions, 1027 flow [2022-12-11 21:49:48,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 21:49:48,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 21:49:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2022-12-11 21:49:48,603 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7870370370370371 [2022-12-11 21:49:48,603 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 2 predicate places. [2022-12-11 21:49:48,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 258 transitions, 1027 flow [2022-12-11 21:49:48,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 254 transitions, 1006 flow [2022-12-11 21:49:48,653 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 254 transitions, 1006 flow [2022-12-11 21:49:48,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 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) [2022-12-11 21:49:48,654 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:49:48,655 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:49:48,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:49:48,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:49:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:49:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash 109566271, now seen corresponding path program 1 times [2022-12-11 21:49:48,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:49:48,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172687445] [2022-12-11 21:49:48,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:49:48,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:49:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:49:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:49,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:49:49,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172687445] [2022-12-11 21:49:49,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172687445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:49:49,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:49:49,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:49:49,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271375652] [2022-12-11 21:49:49,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:49:49,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:49:49,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:49:49,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:49:49,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:49:49,005 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 252 [2022-12-11 21:49:49,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 254 transitions, 1006 flow. Second operand has 6 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 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) [2022-12-11 21:49:49,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:49:49,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 252 [2022-12-11 21:49:49,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:49:50,713 INFO L130 PetriNetUnfolder]: 4929/10219 cut-off events. [2022-12-11 21:49:50,713 INFO L131 PetriNetUnfolder]: For 8629/9661 co-relation queries the response was YES. [2022-12-11 21:49:50,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32628 conditions, 10219 events. 4929/10219 cut-off events. For 8629/9661 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 83246 event pairs, 1480 based on Foata normal form. 21/9224 useless extension candidates. Maximal degree in co-relation 31007. Up to 6497 conditions per place. [2022-12-11 21:49:50,827 INFO L137 encePairwiseOnDemand]: 240/252 looper letters, 145 selfloop transitions, 14 changer transitions 4/312 dead transitions. [2022-12-11 21:49:50,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 312 transitions, 1744 flow [2022-12-11 21:49:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-11 21:49:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-11 21:49:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-12-11 21:49:50,831 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7876984126984127 [2022-12-11 21:49:50,832 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 5 predicate places. [2022-12-11 21:49:50,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 312 transitions, 1744 flow [2022-12-11 21:49:50,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 308 transitions, 1715 flow [2022-12-11 21:49:50,983 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 308 transitions, 1715 flow [2022-12-11 21:49:50,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 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) [2022-12-11 21:49:50,984 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:49:50,984 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:49:50,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:49:50,985 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:49:50,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:49:50,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1989648156, now seen corresponding path program 1 times [2022-12-11 21:49:50,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:49:50,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570271544] [2022-12-11 21:49:50,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:49:50,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:49:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:49:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:51,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:49:51,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570271544] [2022-12-11 21:49:51,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570271544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:49:51,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:49:51,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:49:51,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769307748] [2022-12-11 21:49:51,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:49:51,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:49:51,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:49:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:49:51,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:49:51,300 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 252 [2022-12-11 21:49:51,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 308 transitions, 1715 flow. Second operand has 7 states, 7 states have (on average 191.71428571428572) internal successors, (1342), 7 states have internal predecessors, (1342), 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) [2022-12-11 21:49:51,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:49:51,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 252 [2022-12-11 21:49:51,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:49:53,726 INFO L130 PetriNetUnfolder]: 6461/14508 cut-off events. [2022-12-11 21:49:53,726 INFO L131 PetriNetUnfolder]: For 19789/22028 co-relation queries the response was YES. [2022-12-11 21:49:53,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53225 conditions, 14508 events. 6461/14508 cut-off events. For 19789/22028 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 132483 event pairs, 1089 based on Foata normal form. 323/13305 useless extension candidates. Maximal degree in co-relation 38384. Up to 8635 conditions per place. [2022-12-11 21:49:53,994 INFO L137 encePairwiseOnDemand]: 244/252 looper letters, 233 selfloop transitions, 7 changer transitions 6/406 dead transitions. [2022-12-11 21:49:53,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 406 transitions, 3120 flow [2022-12-11 21:49:54,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:49:54,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:49:54,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1403 transitions. [2022-12-11 21:49:54,003 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7953514739229025 [2022-12-11 21:49:54,004 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 9 predicate places. [2022-12-11 21:49:54,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 406 transitions, 3120 flow [2022-12-11 21:49:54,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 400 transitions, 3042 flow [2022-12-11 21:49:54,120 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 400 transitions, 3042 flow [2022-12-11 21:49:54,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 191.71428571428572) internal successors, (1342), 7 states have internal predecessors, (1342), 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) [2022-12-11 21:49:54,122 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:49:54,122 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:49:54,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-11 21:49:54,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:49:54,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:49:54,123 INFO L85 PathProgramCache]: Analyzing trace with hash 945924802, now seen corresponding path program 1 times [2022-12-11 21:49:54,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:49:54,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682953903] [2022-12-11 21:49:54,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:49:54,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:49:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:49:54,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:54,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:49:54,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682953903] [2022-12-11 21:49:54,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682953903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:49:54,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:49:54,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-11 21:49:54,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887860646] [2022-12-11 21:49:54,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:49:54,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-11 21:49:54,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:49:54,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-11 21:49:54,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-11 21:49:54,449 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 252 [2022-12-11 21:49:54,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 400 transitions, 3042 flow. Second operand has 7 states, 7 states have (on average 191.71428571428572) internal successors, (1342), 7 states have internal predecessors, (1342), 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) [2022-12-11 21:49:54,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:49:54,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 252 [2022-12-11 21:49:54,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:49:56,278 INFO L130 PetriNetUnfolder]: 5352/11824 cut-off events. [2022-12-11 21:49:56,278 INFO L131 PetriNetUnfolder]: For 22992/25908 co-relation queries the response was YES. [2022-12-11 21:49:56,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51037 conditions, 11824 events. 5352/11824 cut-off events. For 22992/25908 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 102920 event pairs, 1038 based on Foata normal form. 144/10724 useless extension candidates. Maximal degree in co-relation 44770. Up to 7149 conditions per place. [2022-12-11 21:49:56,414 INFO L137 encePairwiseOnDemand]: 244/252 looper letters, 148 selfloop transitions, 4 changer transitions 53/365 dead transitions. [2022-12-11 21:49:56,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 365 transitions, 3069 flow [2022-12-11 21:49:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 21:49:56,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 21:49:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1392 transitions. [2022-12-11 21:49:56,419 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7891156462585034 [2022-12-11 21:49:56,422 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 15 predicate places. [2022-12-11 21:49:56,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 365 transitions, 3069 flow [2022-12-11 21:49:56,513 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 312 transitions, 2331 flow [2022-12-11 21:49:56,513 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 312 transitions, 2331 flow [2022-12-11 21:49:56,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 191.71428571428572) internal successors, (1342), 7 states have internal predecessors, (1342), 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) [2022-12-11 21:49:56,514 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:49:56,515 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:49:56,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-11 21:49:56,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:49:56,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:49:56,516 INFO L85 PathProgramCache]: Analyzing trace with hash -286194711, now seen corresponding path program 1 times [2022-12-11 21:49:56,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:49:56,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298471079] [2022-12-11 21:49:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:49:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:49:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:49:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:56,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:49:56,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298471079] [2022-12-11 21:49:56,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298471079] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:49:56,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980779255] [2022-12-11 21:49:56,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:49:56,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:49:56,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:49:56,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 21:49:56,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-11 21:49:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:49:57,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-11 21:49:57,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:49:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:57,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 21:49:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:49:57,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980779255] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 21:49:57,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 21:49:57,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-11 21:49:57,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368144798] [2022-12-11 21:49:57,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 21:49:57,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 21:49:57,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:49:57,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 21:49:57,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-12-11 21:49:57,642 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 252 [2022-12-11 21:49:57,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 312 transitions, 2331 flow. Second operand has 19 states, 19 states have (on average 189.57894736842104) internal successors, (3602), 19 states have internal predecessors, (3602), 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) [2022-12-11 21:49:57,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:49:57,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 252 [2022-12-11 21:49:57,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:49:59,892 INFO L130 PetriNetUnfolder]: 6200/13802 cut-off events. [2022-12-11 21:49:59,893 INFO L131 PetriNetUnfolder]: For 31804/35416 co-relation queries the response was YES. [2022-12-11 21:49:59,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68281 conditions, 13802 events. 6200/13802 cut-off events. For 31804/35416 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 123671 event pairs, 1324 based on Foata normal form. 583/13088 useless extension candidates. Maximal degree in co-relation 48004. Up to 8388 conditions per place. [2022-12-11 21:50:00,053 INFO L137 encePairwiseOnDemand]: 236/252 looper letters, 308 selfloop transitions, 25 changer transitions 6/498 dead transitions. [2022-12-11 21:50:00,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 498 transitions, 5465 flow [2022-12-11 21:50:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 21:50:00,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 21:50:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2725 transitions. [2022-12-11 21:50:00,060 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7723922902494331 [2022-12-11 21:50:00,061 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 24 predicate places. [2022-12-11 21:50:00,061 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 498 transitions, 5465 flow [2022-12-11 21:50:00,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 492 transitions, 5363 flow [2022-12-11 21:50:00,178 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 492 transitions, 5363 flow [2022-12-11 21:50:00,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 189.57894736842104) internal successors, (3602), 19 states have internal predecessors, (3602), 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) [2022-12-11 21:50:00,180 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:50:00,180 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:50:00,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-11 21:50:00,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-11 21:50:00,384 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:50:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:50:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash 922970758, now seen corresponding path program 1 times [2022-12-11 21:50:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:50:00,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117889914] [2022-12-11 21:50:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:50:00,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:50:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:50:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:50:00,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:50:00,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117889914] [2022-12-11 21:50:00,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117889914] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:50:00,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836197829] [2022-12-11 21:50:00,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:50:00,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:50:00,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:50:00,774 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 21:50:00,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-11 21:50:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:50:00,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-11 21:50:00,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:50:01,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:50:01,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 21:50:01,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:50:01,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836197829] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-11 21:50:01,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-11 21:50:01,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-12-11 21:50:01,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756177941] [2022-12-11 21:50:01,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-11 21:50:01,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-11 21:50:01,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:50:01,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-11 21:50:01,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-12-11 21:50:01,432 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 252 [2022-12-11 21:50:01,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 492 transitions, 5363 flow. Second operand has 19 states, 19 states have (on average 189.68421052631578) internal successors, (3604), 19 states have internal predecessors, (3604), 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) [2022-12-11 21:50:01,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:50:01,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 252 [2022-12-11 21:50:01,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:50:03,390 INFO L130 PetriNetUnfolder]: 4821/11507 cut-off events. [2022-12-11 21:50:03,390 INFO L131 PetriNetUnfolder]: For 32551/36074 co-relation queries the response was YES. [2022-12-11 21:50:03,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61365 conditions, 11507 events. 4821/11507 cut-off events. For 32551/36074 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 104566 event pairs, 502 based on Foata normal form. 437/10886 useless extension candidates. Maximal degree in co-relation 52179. Up to 6632 conditions per place. [2022-12-11 21:50:03,483 INFO L137 encePairwiseOnDemand]: 236/252 looper letters, 353 selfloop transitions, 32 changer transitions 53/597 dead transitions. [2022-12-11 21:50:03,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 597 transitions, 7820 flow [2022-12-11 21:50:03,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 21:50:03,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 21:50:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2714 transitions. [2022-12-11 21:50:03,488 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7692743764172335 [2022-12-11 21:50:03,489 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 37 predicate places. [2022-12-11 21:50:03,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 597 transitions, 7820 flow [2022-12-11 21:50:03,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 544 transitions, 6870 flow [2022-12-11 21:50:03,560 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 544 transitions, 6870 flow [2022-12-11 21:50:03,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 189.68421052631578) internal successors, (3604), 19 states have internal predecessors, (3604), 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) [2022-12-11 21:50:03,561 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:50:03,562 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:50:03,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-11 21:50:03,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-11 21:50:03,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:50:03,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:50:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1663142252, now seen corresponding path program 2 times [2022-12-11 21:50:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:50:03,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750923069] [2022-12-11 21:50:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:50:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:50:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:50:04,136 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 21:50:04,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:50:04,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750923069] [2022-12-11 21:50:04,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750923069] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:50:04,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418037251] [2022-12-11 21:50:04,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 21:50:04,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:50:04,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:50:04,139 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 21:50:04,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-11 21:50:04,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 21:50:04,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 21:50:04,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-11 21:50:04,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:50:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 21:50:04,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 21:50:04,733 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-11 21:50:04,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418037251] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 21:50:04,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 21:50:04,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2022-12-11 21:50:04,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944229070] [2022-12-11 21:50:04,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:50:04,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:50:04,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:50:04,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:50:04,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-11 21:50:04,737 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 252 [2022-12-11 21:50:04,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 544 transitions, 6870 flow. Second operand has 9 states, 9 states have (on average 190.77777777777777) internal successors, (1717), 9 states have internal predecessors, (1717), 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) [2022-12-11 21:50:04,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:50:04,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 252 [2022-12-11 21:50:04,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:50:06,029 INFO L130 PetriNetUnfolder]: 3360/7541 cut-off events. [2022-12-11 21:50:06,029 INFO L131 PetriNetUnfolder]: For 26380/30329 co-relation queries the response was YES. [2022-12-11 21:50:06,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46183 conditions, 7541 events. 3360/7541 cut-off events. For 26380/30329 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 60469 event pairs, 169 based on Foata normal form. 204/7136 useless extension candidates. Maximal degree in co-relation 44752. Up to 4561 conditions per place. [2022-12-11 21:50:06,109 INFO L137 encePairwiseOnDemand]: 240/252 looper letters, 403 selfloop transitions, 23 changer transitions 0/581 dead transitions. [2022-12-11 21:50:06,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 581 transitions, 8384 flow [2022-12-11 21:50:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:50:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:50:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1933 transitions. [2022-12-11 21:50:06,113 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7670634920634921 [2022-12-11 21:50:06,114 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 42 predicate places. [2022-12-11 21:50:06,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 581 transitions, 8384 flow [2022-12-11 21:50:06,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 581 transitions, 8384 flow [2022-12-11 21:50:06,194 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 581 transitions, 8384 flow [2022-12-11 21:50:06,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 190.77777777777777) internal successors, (1717), 9 states have internal predecessors, (1717), 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) [2022-12-11 21:50:06,195 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:50:06,195 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:50:06,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-11 21:50:06,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:50:06,398 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:50:06,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:50:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1086163407, now seen corresponding path program 2 times [2022-12-11 21:50:06,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:50:06,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770788719] [2022-12-11 21:50:06,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:50:06,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:50:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:50:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:50:06,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:50:06,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770788719] [2022-12-11 21:50:06,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770788719] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:50:06,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724459435] [2022-12-11 21:50:06,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-11 21:50:06,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:50:06,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:50:06,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 21:50:06,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-11 21:50:07,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-11 21:50:07,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-11 21:50:07,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-11 21:50:07,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:50:07,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:50:07,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 21:50:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:50:07,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724459435] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-11 21:50:07,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-11 21:50:07,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2022-12-11 21:50:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796285808] [2022-12-11 21:50:07,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:50:07,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:50:07,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:50:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:50:07,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-12-11 21:50:07,489 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 252 [2022-12-11 21:50:07,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 581 transitions, 8384 flow. Second operand has 9 states, 9 states have (on average 190.77777777777777) internal successors, (1717), 9 states have internal predecessors, (1717), 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) [2022-12-11 21:50:07,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:50:07,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 252 [2022-12-11 21:50:07,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:50:08,480 INFO L130 PetriNetUnfolder]: 2541/5601 cut-off events. [2022-12-11 21:50:08,480 INFO L131 PetriNetUnfolder]: For 22362/24755 co-relation queries the response was YES. [2022-12-11 21:50:08,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38107 conditions, 5601 events. 2541/5601 cut-off events. For 22362/24755 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 41264 event pairs, 103 based on Foata normal form. 153/5365 useless extension candidates. Maximal degree in co-relation 36860. Up to 3438 conditions per place. [2022-12-11 21:50:08,571 INFO L137 encePairwiseOnDemand]: 240/252 looper letters, 421 selfloop transitions, 28 changer transitions 0/600 dead transitions. [2022-12-11 21:50:08,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 600 transitions, 9648 flow [2022-12-11 21:50:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-11 21:50:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-11 21:50:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1933 transitions. [2022-12-11 21:50:08,575 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7670634920634921 [2022-12-11 21:50:08,575 INFO L295 CegarLoopForPetriNet]: 213 programPoint places, 51 predicate places. [2022-12-11 21:50:08,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 600 transitions, 9648 flow [2022-12-11 21:50:08,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 600 transitions, 9648 flow [2022-12-11 21:50:08,642 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 600 transitions, 9648 flow [2022-12-11 21:50:08,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 190.77777777777777) internal successors, (1717), 9 states have internal predecessors, (1717), 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) [2022-12-11 21:50:08,643 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:50:08,643 INFO L214 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:50:08,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-11 21:50:08,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:50:08,844 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-11 21:50:08,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:50:08,845 INFO L85 PathProgramCache]: Analyzing trace with hash 449005757, now seen corresponding path program 1 times [2022-12-11 21:50:08,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:50:08,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231324737] [2022-12-11 21:50:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:50:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:50:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:50:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-11 21:50:10,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:50:10,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231324737] [2022-12-11 21:50:10,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231324737] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-11 21:50:10,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233263768] [2022-12-11 21:50:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:50:10,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-11 21:50:10,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:50:10,239 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-11 21:50:10,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-11 21:50:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:50:10,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 78 conjunts are in the unsatisfiable core [2022-12-11 21:50:10,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-11 21:50:10,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-11 21:50:10,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 21:50:10,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 21:50:11,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 21:50:11,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-11 21:50:11,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-11 21:50:11,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-11 21:50:11,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-11 21:50:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:50:11,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-11 21:50:11,732 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_489 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork5_~#t2~0.base| v_ArrVal_489) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) c_~s_6~0)) is different from false [2022-12-11 21:50:12,146 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork5_~#t2~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork5_~#t2~0.base_26|)) (forall ((v_ArrVal_489 (Array Int Int))) (= c_~s_6~0 (select (select (store |c_#memory_int| |v_thread1Thread1of1ForFork5_~#t2~0.base_26| v_ArrVal_489) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))))) is different from false [2022-12-11 21:50:12,170 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork5_~#t2~0.base_26| Int) (v_ArrVal_489 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork5_~#t2~0.base_26|)) (= (select (select (store |c_#memory_int| |v_thread1Thread1of1ForFork5_~#t2~0.base_26| v_ArrVal_489) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 c_~t_8~0)))) is different from false [2022-12-11 21:50:12,188 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork5_~#t2~0.base_26| Int) (v_ArrVal_489 (Array Int Int))) (or (= (select (select (store |c_#memory_int| |v_thread1Thread1of1ForFork5_~#t2~0.base_26| v_ArrVal_489) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0))))) (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork5_~#t2~0.base_26|)))) is different from false [2022-12-11 21:50:12,229 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork5_~#t2~0.base_26| Int) (v_ArrVal_489 (Array Int Int)) (v_ArrVal_488 (Array Int Int))) (or (let ((.cse0 (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_488))) (= (select (select (store .cse0 |v_thread1Thread1of1ForFork5_~#t2~0.base_26| v_ArrVal_489) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 (select (select .cse0 c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))))) (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork5_~#t2~0.base_26|)))) is different from false [2022-12-11 21:50:12,298 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_487 (Array Int Int)) (|v_thread1Thread1of1ForFork5_~#t2~0.base_26| Int) (v_ArrVal_489 (Array Int Int)) (v_ArrVal_488 (Array Int Int))) (or (let ((.cse0 (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_487) |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_488))) (= (select (select (store .cse0 |v_thread1Thread1of1ForFork5_~#t2~0.base_26| v_ArrVal_489) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 (select (select .cse0 c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_7~0)))))) (not (< |c_#StackHeapBarrier| |v_thread1Thread1of1ForFork5_~#t2~0.base_26|)))) is different from false [2022-12-11 21:50:14,319 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-11 21:50:14,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 43 [2022-12-11 21:50:14,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9838 treesize of output 8878 [2022-12-11 21:50:14,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8470 treesize of output 7446 [2022-12-11 21:50:14,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7446 treesize of output 6806 [2022-12-11 21:50:14,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6806 treesize of output 5782 Received shutdown request... [2022-12-11 22:04:02,464 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2022-12-11 22:04:02,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-11 22:04:02,483 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 22:04:02,495 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-11 22:04:02,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-11 22:04:02,676 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2022-12-11 22:04:02,677 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 11 remaining) [2022-12-11 22:04:02,677 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-12-11 22:04:02,677 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-12-11 22:04:02,678 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-12-11 22:04:02,678 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2022-12-11 22:04:02,678 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2022-12-11 22:04:02,678 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork5Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2022-12-11 22:04:02,678 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork5Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-12-11 22:04:02,678 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-12-11 22:04:02,678 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Thread1of1ForFork0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-12-11 22:04:02,679 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-11 22:04:02,682 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 22:04:02,682 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 22:04:02,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 10:04:02 BasicIcfg [2022-12-11 22:04:02,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 22:04:02,685 INFO L158 Benchmark]: Toolchain (without parser) took 859095.06ms. Allocated memory was 175.1MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 151.5MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-12-11 22:04:02,686 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 22:04:02,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.03ms. Allocated memory is still 175.1MB. Free memory was 151.5MB in the beginning and 135.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-12-11 22:04:02,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.21ms. Allocated memory is still 175.1MB. Free memory was 135.7MB in the beginning and 132.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 22:04:02,687 INFO L158 Benchmark]: Boogie Preprocessor took 58.00ms. Allocated memory is still 175.1MB. Free memory was 132.6MB in the beginning and 130.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 22:04:02,687 INFO L158 Benchmark]: RCFGBuilder took 873.81ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 130.5MB in the beginning and 174.8MB in the end (delta: -44.3MB). Peak memory consumption was 43.2MB. Max. memory is 8.0GB. [2022-12-11 22:04:02,687 INFO L158 Benchmark]: TraceAbstraction took 857730.64ms. Allocated memory was 210.8MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 173.8MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-12-11 22:04:02,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 175.1MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 351.03ms. Allocated memory is still 175.1MB. Free memory was 151.5MB in the beginning and 135.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 72.21ms. Allocated memory is still 175.1MB. Free memory was 135.7MB in the beginning and 132.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.00ms. Allocated memory is still 175.1MB. Free memory was 132.6MB in the beginning and 130.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 873.81ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 130.5MB in the beginning and 174.8MB in the end (delta: -44.3MB). Peak memory consumption was 43.2MB. Max. memory is 8.0GB. * TraceAbstraction took 857730.64ms. Allocated memory was 210.8MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 173.8MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 169]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 168]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 195 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 311 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.8s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 857.6s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1471 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1471 mSDsluCounter, 308 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 203 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2222 IncrementalHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 105 mSDtfsCounter, 2222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1595 GetRequests, 1461 SyntacticMatches, 6 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9648occurred in iteration=9, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 1926 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2356 NumberOfCodeBlocks, 2356 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3085 ConstructedInterpolants, 0 QuantifiedInterpolants, 7580 SizeOfPredicates, 34 NumberOfNonLiveVariables, 2202 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 17 InterpolantComputations, 7 PerfectInterpolantSequences, 34/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown