/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-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 17:39:42,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 17:39:42,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 17:39:42,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 17:39:42,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 17:39:42,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 17:39:42,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 17:39:42,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 17:39:42,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 17:39:42,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 17:39:42,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 17:39:42,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 17:39:42,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 17:39:42,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 17:39:42,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 17:39:42,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 17:39:42,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 17:39:42,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 17:39:42,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 17:39:42,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 17:39:42,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 17:39:42,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 17:39:42,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 17:39:42,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 17:39:42,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 17:39:42,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 17:39:42,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 17:39:42,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 17:39:42,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 17:39:42,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 17:39:42,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 17:39:42,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 17:39:42,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 17:39:42,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 17:39:42,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 17:39:42,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 17:39:42,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 17:39:42,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 17:39:42,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 17:39:42,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 17:39:42,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 17:39:42,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-06 17:39:42,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 17:39:42,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 17:39:42,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 17:39:42,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 17:39:42,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 17:39:42,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 17:39:42,233 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 17:39:42,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 17:39:42,233 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 17:39:42,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 17:39:42,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 17:39:42,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 17:39:42,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 17:39:42,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 17:39:42,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 17:39:42,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 17:39:42,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:39:42,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 17:39:42,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 17:39:42,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 17:39:42,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 17:39:42,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 17:39:42,236 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 17:39:42,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 17:39:42,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 17:39:42,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 17:39:42,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 17:39:42,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 17:39:42,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 17:39:42,505 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 17:39:42,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-12-06 17:39:43,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 17:39:43,768 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 17:39:43,769 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-12-06 17:39:43,773 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edf1ae6c1/5f8e1daf1d4f40629a873873dd890e85/FLAG0addef313 [2022-12-06 17:39:43,785 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edf1ae6c1/5f8e1daf1d4f40629a873873dd890e85 [2022-12-06 17:39:43,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 17:39:43,788 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 17:39:43,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 17:39:43,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 17:39:43,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 17:39:43,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:43,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ee337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43, skipping insertion in model container [2022-12-06 17:39:43,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:43,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 17:39:43,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 17:39:43,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,904 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,910 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-ticket-5.wvr.c[3963,3976] [2022-12-06 17:39:43,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:39:43,928 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 17:39:43,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,939 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 17:39:43,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 17:39:43,949 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-ticket-5.wvr.c[3963,3976] [2022-12-06 17:39:43,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 17:39:43,959 INFO L208 MainTranslator]: Completed translation [2022-12-06 17:39:43,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43 WrapperNode [2022-12-06 17:39:43,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 17:39:43,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 17:39:43,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 17:39:43,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 17:39:43,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:43,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:43,987 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-12-06 17:39:43,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 17:39:43,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 17:39:43,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 17:39:43,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 17:39:43,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:43,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:43,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:43,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:44,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:44,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:44,003 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:44,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:44,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 17:39:44,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 17:39:44,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 17:39:44,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 17:39:44,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (1/1) ... [2022-12-06 17:39:44,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 17:39:44,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 17:39:44,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 17:39:44,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 17:39:44,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 17:39:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 17:39:44,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 17:39:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 17:39:44,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 17:39:44,071 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 17:39:44,071 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 17:39:44,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 17:39:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 17:39:44,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 17:39:44,072 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-06 17:39:44,072 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-06 17:39:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 17:39:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 17:39:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 17:39:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 17:39:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 17:39:44,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 17:39:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 17:39:44,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 17:39:44,074 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 17:39:44,207 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 17:39:44,209 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 17:39:44,390 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 17:39:44,446 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 17:39:44,446 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 17:39:44,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:39:44 BoogieIcfgContainer [2022-12-06 17:39:44,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 17:39:44,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 17:39:44,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 17:39:44,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 17:39:44,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:39:43" (1/3) ... [2022-12-06 17:39:44,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c1404e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:39:44, skipping insertion in model container [2022-12-06 17:39:44,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:39:43" (2/3) ... [2022-12-06 17:39:44,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c1404e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:39:44, skipping insertion in model container [2022-12-06 17:39:44,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:39:44" (3/3) ... [2022-12-06 17:39:44,453 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-12-06 17:39:44,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 17:39:44,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 17:39:44,466 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 17:39:44,517 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-06 17:39:44,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 158 transitions, 356 flow [2022-12-06 17:39:44,615 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2022-12-06 17:39:44,615 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 17:39:44,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 153 events. 2/153 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2022-12-06 17:39:44,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 158 transitions, 356 flow [2022-12-06 17:39:44,626 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 139 transitions, 308 flow [2022-12-06 17:39:44,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 17:39:44,644 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;@4c3b8af0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 17:39:44,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-06 17:39:44,686 INFO L130 PetriNetUnfolder]: 2/138 cut-off events. [2022-12-06 17:39:44,686 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 17:39:44,686 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:44,687 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:44,690 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 17:39:44,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:44,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1841013533, now seen corresponding path program 1 times [2022-12-06 17:39:44,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:44,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116083094] [2022-12-06 17:39:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:44,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:46,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:46,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116083094] [2022-12-06 17:39:46,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116083094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:46,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:46,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:39:46,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217250042] [2022-12-06 17:39:46,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:46,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:39:46,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:46,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:39:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:39:46,428 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 158 [2022-12-06 17:39:46,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 139 transitions, 308 flow. Second operand has 10 states, 10 states have (on average 114.3) internal successors, (1143), 10 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:46,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:46,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 158 [2022-12-06 17:39:46,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:50,260 INFO L130 PetriNetUnfolder]: 24026/39846 cut-off events. [2022-12-06 17:39:50,260 INFO L131 PetriNetUnfolder]: For 5728/5728 co-relation queries the response was YES. [2022-12-06 17:39:50,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76095 conditions, 39846 events. 24026/39846 cut-off events. For 5728/5728 co-relation queries the response was YES. Maximal size of possible extension queue 1697. Compared 339075 event pairs, 8436 based on Foata normal form. 3/39281 useless extension candidates. Maximal degree in co-relation 75226. Up to 15956 conditions per place. [2022-12-06 17:39:50,558 INFO L137 encePairwiseOnDemand]: 140/158 looper letters, 85 selfloop transitions, 15 changer transitions 13/205 dead transitions. [2022-12-06 17:39:50,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 205 transitions, 711 flow [2022-12-06 17:39:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-06 17:39:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-06 17:39:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1327 transitions. [2022-12-06 17:39:50,572 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7635212888377445 [2022-12-06 17:39:50,575 INFO L294 CegarLoopForPetriNet]: 153 programPoint places, 10 predicate places. [2022-12-06 17:39:50,575 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 205 transitions, 711 flow [2022-12-06 17:39:50,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 114.3) internal successors, (1143), 10 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:50,576 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:50,576 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:50,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 17:39:50,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 17:39:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:50,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1227047503, now seen corresponding path program 2 times [2022-12-06 17:39:50,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:50,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114478628] [2022-12-06 17:39:50,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:51,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:51,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:51,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114478628] [2022-12-06 17:39:51,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114478628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:51,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:51,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-06 17:39:51,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148117656] [2022-12-06 17:39:51,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:51,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-06 17:39:51,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:51,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-06 17:39:51,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 17:39:51,284 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 158 [2022-12-06 17:39:51,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 205 transitions, 711 flow. Second operand has 10 states, 10 states have (on average 114.3) internal successors, (1143), 10 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:51,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:51,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 158 [2022-12-06 17:39:51,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:39:55,207 INFO L130 PetriNetUnfolder]: 29454/46911 cut-off events. [2022-12-06 17:39:55,207 INFO L131 PetriNetUnfolder]: For 11137/51911 co-relation queries the response was YES. [2022-12-06 17:39:55,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131420 conditions, 46911 events. 29454/46911 cut-off events. For 11137/51911 co-relation queries the response was YES. Maximal size of possible extension queue 2067. Compared 379711 event pairs, 14825 based on Foata normal form. 8/45876 useless extension candidates. Maximal degree in co-relation 101688. Up to 28944 conditions per place. [2022-12-06 17:39:55,463 INFO L137 encePairwiseOnDemand]: 143/158 looper letters, 102 selfloop transitions, 13 changer transitions 61/268 dead transitions. [2022-12-06 17:39:55,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 268 transitions, 1363 flow [2022-12-06 17:39:55,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-06 17:39:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-06 17:39:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1432 transitions. [2022-12-06 17:39:55,467 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7552742616033755 [2022-12-06 17:39:55,468 INFO L294 CegarLoopForPetriNet]: 153 programPoint places, 21 predicate places. [2022-12-06 17:39:55,468 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 268 transitions, 1363 flow [2022-12-06 17:39:55,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 114.3) internal successors, (1143), 10 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:55,469 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:39:55,469 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:39:55,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 17:39:55,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 17:39:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:39:55,470 INFO L85 PathProgramCache]: Analyzing trace with hash 970780531, now seen corresponding path program 3 times [2022-12-06 17:39:55,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:39:55,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271295348] [2022-12-06 17:39:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:39:55,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:39:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:39:55,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:39:55,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:39:55,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271295348] [2022-12-06 17:39:55,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271295348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:39:55,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:39:55,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-06 17:39:55,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97807220] [2022-12-06 17:39:55,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:39:55,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-06 17:39:55,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:39:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-06 17:39:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-06 17:39:55,692 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 158 [2022-12-06 17:39:55,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 268 transitions, 1363 flow. Second operand has 7 states, 7 states have (on average 119.57142857142857) internal successors, (837), 7 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:39:55,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:39:55,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 158 [2022-12-06 17:39:55,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:03,622 INFO L130 PetriNetUnfolder]: 60268/98364 cut-off events. [2022-12-06 17:40:03,623 INFO L131 PetriNetUnfolder]: For 73466/184920 co-relation queries the response was YES. [2022-12-06 17:40:03,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339860 conditions, 98364 events. 60268/98364 cut-off events. For 73466/184920 co-relation queries the response was YES. Maximal size of possible extension queue 5180. Compared 923572 event pairs, 14429 based on Foata normal form. 1746/97825 useless extension candidates. Maximal degree in co-relation 241592. Up to 60403 conditions per place. [2022-12-06 17:40:04,459 INFO L137 encePairwiseOnDemand]: 143/158 looper letters, 199 selfloop transitions, 62 changer transitions 161/535 dead transitions. [2022-12-06 17:40:04,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 535 transitions, 4023 flow [2022-12-06 17:40:04,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 17:40:04,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 17:40:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1020 transitions. [2022-12-06 17:40:04,462 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8069620253164557 [2022-12-06 17:40:04,463 INFO L294 CegarLoopForPetriNet]: 153 programPoint places, 28 predicate places. [2022-12-06 17:40:04,463 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 535 transitions, 4023 flow [2022-12-06 17:40:04,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 119.57142857142857) internal successors, (837), 7 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:04,464 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:04,464 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:04,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 17:40:04,464 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 17:40:04,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:04,465 INFO L85 PathProgramCache]: Analyzing trace with hash 231578521, now seen corresponding path program 4 times [2022-12-06 17:40:04,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:04,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402502709] [2022-12-06 17:40:04,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:04,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:04,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:04,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402502709] [2022-12-06 17:40:04,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402502709] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:04,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:04,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:40:04,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850723234] [2022-12-06 17:40:04,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:04,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:40:04,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:04,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:40:04,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:40:04,735 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 158 [2022-12-06 17:40:04,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 535 transitions, 4023 flow. Second operand has 9 states, 9 states have (on average 118.33333333333333) internal successors, (1065), 9 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:04,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:04,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 158 [2022-12-06 17:40:04,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:16,486 INFO L130 PetriNetUnfolder]: 74198/120404 cut-off events. [2022-12-06 17:40:16,487 INFO L131 PetriNetUnfolder]: For 158371/308081 co-relation queries the response was YES. [2022-12-06 17:40:16,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500370 conditions, 120404 events. 74198/120404 cut-off events. For 158371/308081 co-relation queries the response was YES. Maximal size of possible extension queue 6992. Compared 1157226 event pairs, 14004 based on Foata normal form. 2515/121505 useless extension candidates. Maximal degree in co-relation 376649. Up to 75160 conditions per place. [2022-12-06 17:40:17,435 INFO L137 encePairwiseOnDemand]: 143/158 looper letters, 413 selfloop transitions, 278 changer transitions 475/1279 dead transitions. [2022-12-06 17:40:17,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 1279 transitions, 12803 flow [2022-12-06 17:40:17,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-06 17:40:17,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-06 17:40:17,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1285 transitions. [2022-12-06 17:40:17,438 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8132911392405063 [2022-12-06 17:40:17,438 INFO L294 CegarLoopForPetriNet]: 153 programPoint places, 37 predicate places. [2022-12-06 17:40:17,438 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 1279 transitions, 12803 flow [2022-12-06 17:40:17,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 118.33333333333333) internal successors, (1065), 9 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:17,439 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:17,439 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:17,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 17:40:17,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 17:40:17,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1961893197, now seen corresponding path program 5 times [2022-12-06 17:40:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:17,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368155023] [2022-12-06 17:40:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:17,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:17,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:17,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368155023] [2022-12-06 17:40:17,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368155023] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:17,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:17,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-06 17:40:17,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118563502] [2022-12-06 17:40:17,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:17,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 17:40:17,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 17:40:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-06 17:40:17,616 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 158 [2022-12-06 17:40:17,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 1279 transitions, 12803 flow. Second operand has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:17,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:17,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 158 [2022-12-06 17:40:17,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 17:40:36,189 INFO L130 PetriNetUnfolder]: 82545/134885 cut-off events. [2022-12-06 17:40:36,190 INFO L131 PetriNetUnfolder]: For 316614/745687 co-relation queries the response was YES. [2022-12-06 17:40:36,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657454 conditions, 134885 events. 82545/134885 cut-off events. For 316614/745687 co-relation queries the response was YES. Maximal size of possible extension queue 8250. Compared 1339594 event pairs, 15551 based on Foata normal form. 5064/138415 useless extension candidates. Maximal degree in co-relation 426991. Up to 84445 conditions per place. [2022-12-06 17:40:37,350 INFO L137 encePairwiseOnDemand]: 143/158 looper letters, 690 selfloop transitions, 328 changer transitions 679/1810 dead transitions. [2022-12-06 17:40:37,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 1810 transitions, 21865 flow [2022-12-06 17:40:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 17:40:37,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 17:40:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1155 transitions. [2022-12-06 17:40:37,356 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8122362869198312 [2022-12-06 17:40:37,358 INFO L294 CegarLoopForPetriNet]: 153 programPoint places, 45 predicate places. [2022-12-06 17:40:37,365 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 1810 transitions, 21865 flow [2022-12-06 17:40:37,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:37,366 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 17:40:37,366 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 17:40:37,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 17:40:37,366 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-06 17:40:37,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 17:40:37,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1677422779, now seen corresponding path program 6 times [2022-12-06 17:40:37,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 17:40:37,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802069326] [2022-12-06 17:40:37,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 17:40:37,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 17:40:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 17:40:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 17:40:37,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 17:40:37,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802069326] [2022-12-06 17:40:37,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802069326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 17:40:37,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 17:40:37,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-06 17:40:37,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041402070] [2022-12-06 17:40:37,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 17:40:37,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-06 17:40:37,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 17:40:37,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-06 17:40:37,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-06 17:40:37,738 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 158 [2022-12-06 17:40:37,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 1810 transitions, 21865 flow. Second operand has 9 states, 9 states have (on average 118.33333333333333) internal successors, (1065), 9 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 17:40:37,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 17:40:37,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 158 [2022-12-06 17:40:37,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand