/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 --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_REDUNDANT_FLOW -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 12:52:04,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 12:52:04,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 12:52:04,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 12:52:04,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 12:52:04,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 12:52:04,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 12:52:04,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 12:52:04,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 12:52:04,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 12:52:04,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 12:52:04,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 12:52:04,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 12:52:04,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 12:52:04,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 12:52:04,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 12:52:04,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 12:52:04,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 12:52:04,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 12:52:04,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 12:52:04,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 12:52:04,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 12:52:04,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 12:52:04,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 12:52:04,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 12:52:04,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 12:52:04,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 12:52:04,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 12:52:04,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 12:52:04,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 12:52:04,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 12:52:04,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 12:52:04,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 12:52:04,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 12:52:04,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 12:52:04,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 12:52:04,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 12:52:04,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 12:52:04,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 12:52:04,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 12:52:04,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 12:52:04,919 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 [2022-12-12 12:52:04,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 12:52:04,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 12:52:04,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 12:52:04,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 12:52:04,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 12:52:04,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 12:52:04,945 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 12:52:04,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 12:52:04,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 12:52:04,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 12:52:04,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 12:52:04,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 12:52:04,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 12:52:04,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 12:52:04,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 12:52:04,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:52:04,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 12:52:04,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 12:52:04,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 12:52:04,948 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-12 12:52:04,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 12:52:04,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 12:52:04,948 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 12:52:04,948 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_REDUNDANT_FLOW [2022-12-12 12:52:05,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 12:52:05,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 12:52:05,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 12:52:05,238 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 12:52:05,247 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 12:52:05,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2022-12-12 12:52:06,285 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 12:52:06,483 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 12:52:06,484 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c [2022-12-12 12:52:06,500 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617b4e249/6dad884608cc4c4590db0790bc4ed67b/FLAG7cafe4a35 [2022-12-12 12:52:06,510 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617b4e249/6dad884608cc4c4590db0790bc4ed67b [2022-12-12 12:52:06,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 12:52:06,513 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 12:52:06,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 12:52:06,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 12:52:06,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 12:52:06,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42cd615c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06, skipping insertion in model container [2022-12-12 12:52:06,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 12:52:06,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 12:52:06,637 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-misc-1.wvr.c[2755,2768] [2022-12-12 12:52:06,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:52:06,651 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 12:52:06,665 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-12-12 12:52:06,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 12:52:06,679 INFO L208 MainTranslator]: Completed translation [2022-12-12 12:52:06,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06 WrapperNode [2022-12-12 12:52:06,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 12:52:06,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 12:52:06,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 12:52:06,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 12:52:06,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,742 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 277 [2022-12-12 12:52:06,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 12:52:06,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 12:52:06,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 12:52:06,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 12:52:06,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 12:52:06,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 12:52:06,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 12:52:06,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 12:52:06,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (1/1) ... [2022-12-12 12:52:06,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 12:52:06,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 12:52:06,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-12 12:52:06,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-12 12:52:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 12:52:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-12 12:52:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-12 12:52:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-12 12:52:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-12 12:52:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 12:52:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 12:52:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 12:52:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-12 12:52:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 12:52:06,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 12:52:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 12:52:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 12:52:06,935 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 12:52:07,010 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 12:52:07,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 12:52:07,422 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 12:52:07,432 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 12:52:07,432 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-12 12:52:07,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:52:07 BoogieIcfgContainer [2022-12-12 12:52:07,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 12:52:07,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 12:52:07,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 12:52:07,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 12:52:07,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 12:52:06" (1/3) ... [2022-12-12 12:52:07,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb1d359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:52:07, skipping insertion in model container [2022-12-12 12:52:07,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 12:52:06" (2/3) ... [2022-12-12 12:52:07,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb1d359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 12:52:07, skipping insertion in model container [2022-12-12 12:52:07,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 12:52:07" (3/3) ... [2022-12-12 12:52:07,463 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2022-12-12 12:52:07,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 12:52:07,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 12:52:07,478 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 12:52:07,621 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 12:52:07,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 336 transitions, 688 flow [2022-12-12 12:52:07,761 INFO L130 PetriNetUnfolder]: 28/334 cut-off events. [2022-12-12 12:52:07,761 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 12:52:07,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 334 events. 28/334 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 760 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 223. Up to 2 conditions per place. [2022-12-12 12:52:07,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 336 transitions, 688 flow [2022-12-12 12:52:07,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 326 transitions, 664 flow [2022-12-12 12:52:07,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 12:52:07,784 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;@9b2eaf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 12:52:07,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-12 12:52:07,830 INFO L130 PetriNetUnfolder]: 28/325 cut-off events. [2022-12-12 12:52:07,830 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 12:52:07,830 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:07,831 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] [2022-12-12 12:52:07,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:07,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash 436528766, now seen corresponding path program 1 times [2022-12-12 12:52:07,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:07,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809989093] [2022-12-12 12:52:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:08,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:08,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809989093] [2022-12-12 12:52:08,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809989093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:08,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:08,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:08,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841767601] [2022-12-12 12:52:08,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:08,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:08,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:08,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:08,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:08,953 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:08,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 326 transitions, 664 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:08,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:08,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:08,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:11,803 INFO L130 PetriNetUnfolder]: 4048/12719 cut-off events. [2022-12-12 12:52:11,803 INFO L131 PetriNetUnfolder]: For 419/419 co-relation queries the response was YES. [2022-12-12 12:52:11,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20770 conditions, 12719 events. 4048/12719 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 119956 event pairs, 689 based on Foata normal form. 1577/13425 useless extension candidates. Maximal degree in co-relation 19979. Up to 4039 conditions per place. [2022-12-12 12:52:11,871 INFO L137 encePairwiseOnDemand]: 267/336 looper letters, 574 selfloop transitions, 75 changer transitions 38/874 dead transitions. [2022-12-12 12:52:11,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 874 transitions, 3203 flow [2022-12-12 12:52:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-12 12:52:11,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-12 12:52:11,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 7494 transitions. [2022-12-12 12:52:11,925 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6559873949579832 [2022-12-12 12:52:11,928 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 33 predicate places. [2022-12-12 12:52:11,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 874 transitions, 3203 flow [2022-12-12 12:52:11,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 874 transitions, 3108 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-12-12 12:52:11,948 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 874 transitions, 3108 flow [2022-12-12 12:52:11,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:11,950 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:11,950 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] [2022-12-12 12:52:11,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 12:52:11,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash 841938772, now seen corresponding path program 2 times [2022-12-12 12:52:11,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:11,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044567371] [2022-12-12 12:52:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:11,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:12,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:12,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044567371] [2022-12-12 12:52:12,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044567371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:12,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:12,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:12,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292651452] [2022-12-12 12:52:12,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:12,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:12,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:12,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:12,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:12,581 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:12,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 874 transitions, 3108 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:12,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:12,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:12,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:15,531 INFO L130 PetriNetUnfolder]: 4487/14173 cut-off events. [2022-12-12 12:52:15,531 INFO L131 PetriNetUnfolder]: For 1857/2257 co-relation queries the response was YES. [2022-12-12 12:52:15,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31515 conditions, 14173 events. 4487/14173 cut-off events. For 1857/2257 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 135926 event pairs, 420 based on Foata normal form. 20/13226 useless extension candidates. Maximal degree in co-relation 20498. Up to 4974 conditions per place. [2022-12-12 12:52:15,585 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 935 selfloop transitions, 161 changer transitions 56/1339 dead transitions. [2022-12-12 12:52:15,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1339 transitions, 7277 flow [2022-12-12 12:52:15,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-12 12:52:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-12-12 12:52:15,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 7710 transitions. [2022-12-12 12:52:15,597 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6374007936507936 [2022-12-12 12:52:15,598 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 62 predicate places. [2022-12-12 12:52:15,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 1339 transitions, 7277 flow [2022-12-12 12:52:15,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 1339 transitions, 6662 flow, removed 305 selfloop flow, removed 2 redundant places. [2022-12-12 12:52:15,609 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 1339 transitions, 6662 flow [2022-12-12 12:52:15,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:15,611 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:15,611 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] [2022-12-12 12:52:15,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 12:52:15,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash 283362688, now seen corresponding path program 3 times [2022-12-12 12:52:15,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:15,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237396558] [2022-12-12 12:52:15,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:15,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:16,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:16,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237396558] [2022-12-12 12:52:16,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237396558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:16,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:16,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-12 12:52:16,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619294263] [2022-12-12 12:52:16,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:16,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-12 12:52:16,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:16,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-12 12:52:16,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2022-12-12 12:52:16,385 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 336 [2022-12-12 12:52:16,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 1339 transitions, 6662 flow. Second operand has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:16,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:16,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 336 [2022-12-12 12:52:16,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:21,828 INFO L130 PetriNetUnfolder]: 6487/18012 cut-off events. [2022-12-12 12:52:21,828 INFO L131 PetriNetUnfolder]: For 7449/8273 co-relation queries the response was YES. [2022-12-12 12:52:21,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51237 conditions, 18012 events. 6487/18012 cut-off events. For 7449/8273 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 169085 event pairs, 756 based on Foata normal form. 77/16831 useless extension candidates. Maximal degree in co-relation 39379. Up to 7818 conditions per place. [2022-12-12 12:52:21,917 INFO L137 encePairwiseOnDemand]: 291/336 looper letters, 1484 selfloop transitions, 222 changer transitions 84/1951 dead transitions. [2022-12-12 12:52:21,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 1951 transitions, 13528 flow [2022-12-12 12:52:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-12 12:52:21,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-12 12:52:21,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 9395 transitions. [2022-12-12 12:52:21,936 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5482609710550888 [2022-12-12 12:52:21,937 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 110 predicate places. [2022-12-12 12:52:21,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 1951 transitions, 13528 flow [2022-12-12 12:52:21,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1951 transitions, 12541 flow, removed 484 selfloop flow, removed 8 redundant places. [2022-12-12 12:52:21,961 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 1951 transitions, 12541 flow [2022-12-12 12:52:21,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:21,963 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:21,963 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] [2022-12-12 12:52:21,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 12:52:21,963 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1454675086, now seen corresponding path program 4 times [2022-12-12 12:52:21,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:21,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157890885] [2022-12-12 12:52:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:22,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:22,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157890885] [2022-12-12 12:52:22,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157890885] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:22,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:22,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634154247] [2022-12-12 12:52:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:22,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:22,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:22,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:22,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:22,546 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:22,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 1951 transitions, 12541 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:22,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:22,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:22,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:27,011 INFO L130 PetriNetUnfolder]: 7464/20349 cut-off events. [2022-12-12 12:52:27,011 INFO L131 PetriNetUnfolder]: For 17118/18453 co-relation queries the response was YES. [2022-12-12 12:52:27,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69158 conditions, 20349 events. 7464/20349 cut-off events. For 17118/18453 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 194700 event pairs, 994 based on Foata normal form. 101/19056 useless extension candidates. Maximal degree in co-relation 65672. Up to 9328 conditions per place. [2022-12-12 12:52:27,119 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1544 selfloop transitions, 376 changer transitions 102/2278 dead transitions. [2022-12-12 12:52:27,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 2278 transitions, 18952 flow [2022-12-12 12:52:27,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-12 12:52:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-12 12:52:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 10744 transitions. [2022-12-12 12:52:27,127 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.626984126984127 [2022-12-12 12:52:27,129 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 152 predicate places. [2022-12-12 12:52:27,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 2278 transitions, 18952 flow [2022-12-12 12:52:27,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 2278 transitions, 16776 flow, removed 1032 selfloop flow, removed 6 redundant places. [2022-12-12 12:52:27,166 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 2278 transitions, 16776 flow [2022-12-12 12:52:27,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:27,168 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:27,168 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] [2022-12-12 12:52:27,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 12:52:27,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:27,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1792402064, now seen corresponding path program 5 times [2022-12-12 12:52:27,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:27,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456149781] [2022-12-12 12:52:27,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:27,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:27,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:27,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456149781] [2022-12-12 12:52:27,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456149781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:27,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:27,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:27,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326029990] [2022-12-12 12:52:27,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:27,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:27,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:27,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:27,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:27,750 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:27,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 2278 transitions, 16776 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:27,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:27,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:27,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:32,490 INFO L130 PetriNetUnfolder]: 7480/20426 cut-off events. [2022-12-12 12:52:32,491 INFO L131 PetriNetUnfolder]: For 21889/23333 co-relation queries the response was YES. [2022-12-12 12:52:32,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73289 conditions, 20426 events. 7480/20426 cut-off events. For 21889/23333 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 196115 event pairs, 988 based on Foata normal form. 110/19144 useless extension candidates. Maximal degree in co-relation 69416. Up to 9132 conditions per place. [2022-12-12 12:52:32,595 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1555 selfloop transitions, 374 changer transitions 122/2307 dead transitions. [2022-12-12 12:52:32,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 2307 transitions, 21064 flow [2022-12-12 12:52:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 12:52:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 12:52:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 11160 transitions. [2022-12-12 12:52:32,604 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6266846361185984 [2022-12-12 12:52:32,604 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 198 predicate places. [2022-12-12 12:52:32,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 2307 transitions, 21064 flow [2022-12-12 12:52:32,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 2307 transitions, 17084 flow, removed 1632 selfloop flow, removed 30 redundant places. [2022-12-12 12:52:32,653 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 2307 transitions, 17084 flow [2022-12-12 12:52:32,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:32,655 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:32,655 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] [2022-12-12 12:52:32,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 12:52:32,655 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:32,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:32,655 INFO L85 PathProgramCache]: Analyzing trace with hash 943154228, now seen corresponding path program 6 times [2022-12-12 12:52:32,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:32,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683788117] [2022-12-12 12:52:32,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:32,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:33,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:33,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:33,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683788117] [2022-12-12 12:52:33,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683788117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:33,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:33,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:33,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943222434] [2022-12-12 12:52:33,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:33,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:33,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:33,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:33,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:33,055 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:33,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 2307 transitions, 17084 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:33,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:33,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:33,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:37,424 INFO L130 PetriNetUnfolder]: 7480/20423 cut-off events. [2022-12-12 12:52:37,424 INFO L131 PetriNetUnfolder]: For 22315/23704 co-relation queries the response was YES. [2022-12-12 12:52:37,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73460 conditions, 20423 events. 7480/20423 cut-off events. For 22315/23704 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 196130 event pairs, 988 based on Foata normal form. 110/19141 useless extension candidates. Maximal degree in co-relation 69564. Up to 9132 conditions per place. [2022-12-12 12:52:37,540 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1544 selfloop transitions, 366 changer transitions 144/2310 dead transitions. [2022-12-12 12:52:37,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 2310 transitions, 21219 flow [2022-12-12 12:52:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 12:52:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 12:52:37,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9952 transitions. [2022-12-12 12:52:37,555 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.630192502532928 [2022-12-12 12:52:37,557 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 214 predicate places. [2022-12-12 12:52:37,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 2310 transitions, 21219 flow [2022-12-12 12:52:37,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 2310 transitions, 17334 flow, removed 1595 selfloop flow, removed 32 redundant places. [2022-12-12 12:52:37,608 INFO L495 AbstractCegarLoop]: Abstraction has has 487 places, 2310 transitions, 17334 flow [2022-12-12 12:52:37,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:37,611 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:37,611 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] [2022-12-12 12:52:37,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 12:52:37,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:37,611 INFO L85 PathProgramCache]: Analyzing trace with hash -351436504, now seen corresponding path program 7 times [2022-12-12 12:52:37,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:37,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138926475] [2022-12-12 12:52:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:37,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:38,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:38,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138926475] [2022-12-12 12:52:38,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138926475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:38,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:38,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:38,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125741459] [2022-12-12 12:52:38,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:38,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:38,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:38,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:38,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:38,048 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:38,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 2310 transitions, 17334 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:38,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:38,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:38,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:42,721 INFO L130 PetriNetUnfolder]: 7799/21254 cut-off events. [2022-12-12 12:52:42,721 INFO L131 PetriNetUnfolder]: For 24867/26246 co-relation queries the response was YES. [2022-12-12 12:52:42,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76840 conditions, 21254 events. 7799/21254 cut-off events. For 24867/26246 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 205342 event pairs, 1052 based on Foata normal form. 108/19926 useless extension candidates. Maximal degree in co-relation 58695. Up to 9526 conditions per place. [2022-12-12 12:52:42,839 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1616 selfloop transitions, 440 changer transitions 163/2475 dead transitions. [2022-12-12 12:52:42,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 2475 transitions, 23156 flow [2022-12-12 12:52:42,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-12 12:52:42,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-12 12:52:42,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 10777 transitions. [2022-12-12 12:52:42,849 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6289098972922502 [2022-12-12 12:52:42,850 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 232 predicate places. [2022-12-12 12:52:42,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 2475 transitions, 23156 flow [2022-12-12 12:52:42,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 2475 transitions, 19181 flow, removed 1641 selfloop flow, removed 24 redundant places. [2022-12-12 12:52:42,907 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 2475 transitions, 19181 flow [2022-12-12 12:52:42,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:42,908 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:42,908 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] [2022-12-12 12:52:42,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 12:52:42,909 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:42,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:42,909 INFO L85 PathProgramCache]: Analyzing trace with hash -338497264, now seen corresponding path program 8 times [2022-12-12 12:52:42,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:42,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522816074] [2022-12-12 12:52:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:42,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:43,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:43,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522816074] [2022-12-12 12:52:43,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522816074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:43,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:43,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:43,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196518977] [2022-12-12 12:52:43,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:43,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:43,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:43,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:43,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:43,294 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:43,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 2475 transitions, 19181 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:43,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:43,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:43,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:48,277 INFO L130 PetriNetUnfolder]: 7802/21237 cut-off events. [2022-12-12 12:52:48,278 INFO L131 PetriNetUnfolder]: For 26323/27786 co-relation queries the response was YES. [2022-12-12 12:52:48,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77503 conditions, 21237 events. 7802/21237 cut-off events. For 26323/27786 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 205166 event pairs, 1043 based on Foata normal form. 110/19920 useless extension candidates. Maximal degree in co-relation 73156. Up to 9526 conditions per place. [2022-12-12 12:52:48,382 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1615 selfloop transitions, 437 changer transitions 183/2491 dead transitions. [2022-12-12 12:52:48,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 2491 transitions, 23778 flow [2022-12-12 12:52:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-12 12:52:48,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-12 12:52:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 10778 transitions. [2022-12-12 12:52:48,389 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.628968253968254 [2022-12-12 12:52:48,390 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 258 predicate places. [2022-12-12 12:52:48,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 2491 transitions, 23778 flow [2022-12-12 12:52:48,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 2491 transitions, 19556 flow, removed 1687 selfloop flow, removed 33 redundant places. [2022-12-12 12:52:48,439 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 2491 transitions, 19556 flow [2022-12-12 12:52:48,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:48,440 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:48,440 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] [2022-12-12 12:52:48,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 12:52:48,440 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1211219770, now seen corresponding path program 9 times [2022-12-12 12:52:48,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:48,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055393761] [2022-12-12 12:52:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:48,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:48,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:48,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055393761] [2022-12-12 12:52:48,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055393761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:48,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:48,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:48,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801323535] [2022-12-12 12:52:48,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:48,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:48,836 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:48,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 2491 transitions, 19556 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:48,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:48,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:48,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:53,387 INFO L130 PetriNetUnfolder]: 7801/21297 cut-off events. [2022-12-12 12:52:53,388 INFO L131 PetriNetUnfolder]: For 27242/28661 co-relation queries the response was YES. [2022-12-12 12:52:53,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77924 conditions, 21297 events. 7801/21297 cut-off events. For 27242/28661 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 206114 event pairs, 1049 based on Foata normal form. 104/19967 useless extension candidates. Maximal degree in co-relation 59025. Up to 9526 conditions per place. [2022-12-12 12:52:53,479 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1620 selfloop transitions, 431 changer transitions 205/2512 dead transitions. [2022-12-12 12:52:53,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 2512 transitions, 24317 flow [2022-12-12 12:52:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 12:52:53,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 12:52:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10385 transitions. [2022-12-12 12:52:53,484 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6307701652089407 [2022-12-12 12:52:53,485 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 273 predicate places. [2022-12-12 12:52:53,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 2512 transitions, 24317 flow [2022-12-12 12:52:53,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 2512 transitions, 19910 flow, removed 1762 selfloop flow, removed 34 redundant places. [2022-12-12 12:52:53,533 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 2512 transitions, 19910 flow [2022-12-12 12:52:53,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:53,534 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:53,534 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] [2022-12-12 12:52:53,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-12 12:52:53,534 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:53,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:53,534 INFO L85 PathProgramCache]: Analyzing trace with hash -9560842, now seen corresponding path program 10 times [2022-12-12 12:52:53,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:53,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849641926] [2022-12-12 12:52:53,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:53,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:54,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:54,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849641926] [2022-12-12 12:52:54,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849641926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:54,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:54,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:54,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162147931] [2022-12-12 12:52:54,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:54,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:54,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:54,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:54,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:54,077 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:54,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 2512 transitions, 19910 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:54,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:54,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:54,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:52:58,538 INFO L130 PetriNetUnfolder]: 7808/21297 cut-off events. [2022-12-12 12:52:58,539 INFO L131 PetriNetUnfolder]: For 27496/28919 co-relation queries the response was YES. [2022-12-12 12:52:58,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78137 conditions, 21297 events. 7808/21297 cut-off events. For 27496/28919 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 206310 event pairs, 1043 based on Foata normal form. 112/19982 useless extension candidates. Maximal degree in co-relation 73560. Up to 9526 conditions per place. [2022-12-12 12:52:58,727 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1618 selfloop transitions, 436 changer transitions 223/2533 dead transitions. [2022-12-12 12:52:58,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 2533 transitions, 24725 flow [2022-12-12 12:52:58,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 12:52:58,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 12:52:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 11174 transitions. [2022-12-12 12:52:58,732 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6274707996406109 [2022-12-12 12:52:58,733 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 291 predicate places. [2022-12-12 12:52:58,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 596 places, 2533 transitions, 24725 flow [2022-12-12 12:52:58,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 2533 transitions, 20231 flow, removed 1811 selfloop flow, removed 30 redundant places. [2022-12-12 12:52:58,775 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 2533 transitions, 20231 flow [2022-12-12 12:52:58,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:58,776 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:52:58,777 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] [2022-12-12 12:52:58,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-12 12:52:58,777 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:52:58,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:52:58,777 INFO L85 PathProgramCache]: Analyzing trace with hash 80060788, now seen corresponding path program 11 times [2022-12-12 12:52:58,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:52:58,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583371389] [2022-12-12 12:52:58,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:52:58,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:52:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:52:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:52:59,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:52:59,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583371389] [2022-12-12 12:52:59,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583371389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:52:59,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:52:59,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:52:59,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232333852] [2022-12-12 12:52:59,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:52:59,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:52:59,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:52:59,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:52:59,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:52:59,161 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:52:59,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 2533 transitions, 20231 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:52:59,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:52:59,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:52:59,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:03,819 INFO L130 PetriNetUnfolder]: 7807/21311 cut-off events. [2022-12-12 12:53:03,819 INFO L131 PetriNetUnfolder]: For 28692/30105 co-relation queries the response was YES. [2022-12-12 12:53:03,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78366 conditions, 21311 events. 7807/21311 cut-off events. For 28692/30105 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 206518 event pairs, 1043 based on Foata normal form. 112/19996 useless extension candidates. Maximal degree in co-relation 73705. Up to 9526 conditions per place. [2022-12-12 12:53:03,915 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1612 selfloop transitions, 429 changer transitions 243/2540 dead transitions. [2022-12-12 12:53:03,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 2540 transitions, 24907 flow [2022-12-12 12:53:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 12:53:03,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 12:53:03,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10382 transitions. [2022-12-12 12:53:03,938 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6305879494655005 [2022-12-12 12:53:03,938 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 309 predicate places. [2022-12-12 12:53:03,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 2540 transitions, 24907 flow [2022-12-12 12:53:03,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 2540 transitions, 20520 flow, removed 1758 selfloop flow, removed 36 redundant places. [2022-12-12 12:53:03,983 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 2540 transitions, 20520 flow [2022-12-12 12:53:03,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:03,984 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:03,984 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] [2022-12-12 12:53:03,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-12 12:53:03,984 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:03,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:03,985 INFO L85 PathProgramCache]: Analyzing trace with hash -272993420, now seen corresponding path program 12 times [2022-12-12 12:53:03,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:03,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690890382] [2022-12-12 12:53:03,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:03,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:04,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:04,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:04,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690890382] [2022-12-12 12:53:04,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690890382] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:04,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:04,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:04,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355486987] [2022-12-12 12:53:04,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:04,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:04,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:04,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:04,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:04,394 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:04,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 2540 transitions, 20520 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:04,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:04,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:04,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:09,261 INFO L130 PetriNetUnfolder]: 7807/21312 cut-off events. [2022-12-12 12:53:09,261 INFO L131 PetriNetUnfolder]: For 29978/31398 co-relation queries the response was YES. [2022-12-12 12:53:09,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78611 conditions, 21312 events. 7807/21312 cut-off events. For 29978/31398 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 206363 event pairs, 1043 based on Foata normal form. 114/20000 useless extension candidates. Maximal degree in co-relation 73900. Up to 9526 conditions per place. [2022-12-12 12:53:09,361 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1596 selfloop transitions, 423 changer transitions 264/2539 dead transitions. [2022-12-12 12:53:09,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 2539 transitions, 25068 flow [2022-12-12 12:53:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-12 12:53:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-12-12 12:53:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 11379 transitions. [2022-12-12 12:53:09,366 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6271494708994709 [2022-12-12 12:53:09,368 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 326 predicate places. [2022-12-12 12:53:09,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 2539 transitions, 25068 flow [2022-12-12 12:53:09,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 2539 transitions, 20485 flow, removed 1868 selfloop flow, removed 31 redundant places. [2022-12-12 12:53:09,422 INFO L495 AbstractCegarLoop]: Abstraction has has 600 places, 2539 transitions, 20485 flow [2022-12-12 12:53:09,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:09,440 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:09,440 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] [2022-12-12 12:53:09,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-12 12:53:09,441 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:09,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:09,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1291708622, now seen corresponding path program 13 times [2022-12-12 12:53:09,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:09,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477580597] [2022-12-12 12:53:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:09,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:09,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:09,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477580597] [2022-12-12 12:53:09,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477580597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:09,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:09,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:09,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978449426] [2022-12-12 12:53:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:09,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:09,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:09,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:09,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:09,935 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:09,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 2539 transitions, 20485 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:09,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:09,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:09,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:14,473 INFO L130 PetriNetUnfolder]: 7825/21370 cut-off events. [2022-12-12 12:53:14,473 INFO L131 PetriNetUnfolder]: For 30692/32121 co-relation queries the response was YES. [2022-12-12 12:53:14,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78855 conditions, 21370 events. 7825/21370 cut-off events. For 30692/32121 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 207178 event pairs, 1040 based on Foata normal form. 110/20052 useless extension candidates. Maximal degree in co-relation 74159. Up to 9564 conditions per place. [2022-12-12 12:53:14,565 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1640 selfloop transitions, 484 changer transitions 290/2670 dead transitions. [2022-12-12 12:53:14,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 2670 transitions, 26543 flow [2022-12-12 12:53:14,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 12:53:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 12:53:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 9144 transitions. [2022-12-12 12:53:14,569 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.632890365448505 [2022-12-12 12:53:14,570 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 337 predicate places. [2022-12-12 12:53:14,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 2670 transitions, 26543 flow [2022-12-12 12:53:14,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 2670 transitions, 22818 flow, removed 1631 selfloop flow, removed 17 redundant places. [2022-12-12 12:53:14,616 INFO L495 AbstractCegarLoop]: Abstraction has has 625 places, 2670 transitions, 22818 flow [2022-12-12 12:53:14,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:14,642 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:14,643 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] [2022-12-12 12:53:14,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-12 12:53:14,643 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:14,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:14,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2136798432, now seen corresponding path program 14 times [2022-12-12 12:53:14,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:14,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272999093] [2022-12-12 12:53:14,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:14,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:15,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:15,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272999093] [2022-12-12 12:53:15,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272999093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:15,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:15,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802841451] [2022-12-12 12:53:15,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:15,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:15,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:15,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:15,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:15,031 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:15,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 2670 transitions, 22818 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:15,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:15,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:15,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:19,786 INFO L130 PetriNetUnfolder]: 7883/21578 cut-off events. [2022-12-12 12:53:19,786 INFO L131 PetriNetUnfolder]: For 35155/36591 co-relation queries the response was YES. [2022-12-12 12:53:19,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81362 conditions, 21578 events. 7883/21578 cut-off events. For 35155/36591 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 209646 event pairs, 1054 based on Foata normal form. 108/20247 useless extension candidates. Maximal degree in co-relation 60900. Up to 9627 conditions per place. [2022-12-12 12:53:19,890 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1660 selfloop transitions, 510 changer transitions 307/2733 dead transitions. [2022-12-12 12:53:19,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 671 places, 2733 transitions, 28497 flow [2022-12-12 12:53:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 12:53:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 12:53:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9929 transitions. [2022-12-12 12:53:19,895 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6287360688956434 [2022-12-12 12:53:19,896 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 366 predicate places. [2022-12-12 12:53:19,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 671 places, 2733 transitions, 28497 flow [2022-12-12 12:53:19,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 2733 transitions, 23864 flow, removed 1854 selfloop flow, removed 26 redundant places. [2022-12-12 12:53:19,950 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 2733 transitions, 23864 flow [2022-12-12 12:53:19,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:19,951 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:19,951 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] [2022-12-12 12:53:19,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-12 12:53:19,951 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:19,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:19,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2094457052, now seen corresponding path program 15 times [2022-12-12 12:53:19,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:19,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097758746] [2022-12-12 12:53:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:19,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:20,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:20,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:20,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097758746] [2022-12-12 12:53:20,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097758746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:20,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:20,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120872640] [2022-12-12 12:53:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:20,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:20,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:20,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:20,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:20,323 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:20,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 2733 transitions, 23864 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:20,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:20,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:20,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:25,376 INFO L130 PetriNetUnfolder]: 7883/21590 cut-off events. [2022-12-12 12:53:25,377 INFO L131 PetriNetUnfolder]: For 38468/39890 co-relation queries the response was YES. [2022-12-12 12:53:25,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82071 conditions, 21590 events. 7883/21590 cut-off events. For 38468/39890 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 209889 event pairs, 1052 based on Foata normal form. 108/20260 useless extension candidates. Maximal degree in co-relation 61255. Up to 9627 conditions per place. [2022-12-12 12:53:25,501 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1654 selfloop transitions, 503 changer transitions 328/2741 dead transitions. [2022-12-12 12:53:25,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 691 places, 2741 transitions, 28936 flow [2022-12-12 12:53:25,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 12:53:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 12:53:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9926 transitions. [2022-12-12 12:53:25,506 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6285460992907801 [2022-12-12 12:53:25,506 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 386 predicate places. [2022-12-12 12:53:25,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 691 places, 2741 transitions, 28936 flow [2022-12-12 12:53:25,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 2741 transitions, 24303 flow, removed 1806 selfloop flow, removed 32 redundant places. [2022-12-12 12:53:25,564 INFO L495 AbstractCegarLoop]: Abstraction has has 659 places, 2741 transitions, 24303 flow [2022-12-12 12:53:25,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:25,565 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:25,565 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] [2022-12-12 12:53:25,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-12 12:53:25,565 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:25,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:25,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1488679690, now seen corresponding path program 16 times [2022-12-12 12:53:25,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:25,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553959045] [2022-12-12 12:53:25,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:25,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:25,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:25,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:25,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553959045] [2022-12-12 12:53:25,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553959045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:25,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:25,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:25,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120356191] [2022-12-12 12:53:25,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:25,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:25,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:25,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:25,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:25,950 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:25,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 2741 transitions, 24303 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:25,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:25,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:25,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:30,857 INFO L130 PetriNetUnfolder]: 7883/21624 cut-off events. [2022-12-12 12:53:30,857 INFO L131 PetriNetUnfolder]: For 41657/43030 co-relation queries the response was YES. [2022-12-12 12:53:30,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82802 conditions, 21624 events. 7883/21624 cut-off events. For 41657/43030 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 211048 event pairs, 1052 based on Foata normal form. 118/20309 useless extension candidates. Maximal degree in co-relation 77621. Up to 9640 conditions per place. [2022-12-12 12:53:30,953 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1653 selfloop transitions, 495 changer transitions 354/2758 dead transitions. [2022-12-12 12:53:30,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 705 places, 2758 transitions, 29584 flow [2022-12-12 12:53:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 12:53:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 12:53:30,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9952 transitions. [2022-12-12 12:53:30,958 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.630192502532928 [2022-12-12 12:53:30,958 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 400 predicate places. [2022-12-12 12:53:30,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 705 places, 2758 transitions, 29584 flow [2022-12-12 12:53:31,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 669 places, 2758 transitions, 24325 flow, removed 2042 selfloop flow, removed 36 redundant places. [2022-12-12 12:53:31,010 INFO L495 AbstractCegarLoop]: Abstraction has has 669 places, 2758 transitions, 24325 flow [2022-12-12 12:53:31,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:31,011 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:31,011 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] [2022-12-12 12:53:31,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-12 12:53:31,011 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash -688349874, now seen corresponding path program 17 times [2022-12-12 12:53:31,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:31,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956155769] [2022-12-12 12:53:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:31,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:31,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:31,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956155769] [2022-12-12 12:53:31,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956155769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:31,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:31,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:31,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733627462] [2022-12-12 12:53:31,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:31,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:31,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:31,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:31,356 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:31,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 2758 transitions, 24325 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:31,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:31,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:31,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:36,393 INFO L130 PetriNetUnfolder]: 7896/21671 cut-off events. [2022-12-12 12:53:36,393 INFO L131 PetriNetUnfolder]: For 40989/42422 co-relation queries the response was YES. [2022-12-12 12:53:36,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82742 conditions, 21671 events. 7896/21671 cut-off events. For 40989/42422 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 211510 event pairs, 1058 based on Foata normal form. 109/20346 useless extension candidates. Maximal degree in co-relation 77530. Up to 9640 conditions per place. [2022-12-12 12:53:36,511 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1657 selfloop transitions, 505 changer transitions 371/2789 dead transitions. [2022-12-12 12:53:36,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 2789 transitions, 29785 flow [2022-12-12 12:53:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 12:53:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 12:53:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10350 transitions. [2022-12-12 12:53:36,516 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6286443148688047 [2022-12-12 12:53:36,522 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 412 predicate places. [2022-12-12 12:53:36,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 717 places, 2789 transitions, 29785 flow [2022-12-12 12:53:36,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 697 places, 2789 transitions, 25246 flow, removed 1928 selfloop flow, removed 20 redundant places. [2022-12-12 12:53:36,585 INFO L495 AbstractCegarLoop]: Abstraction has has 697 places, 2789 transitions, 25246 flow [2022-12-12 12:53:36,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:36,586 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:36,586 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] [2022-12-12 12:53:36,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-12 12:53:36,586 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:36,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:36,602 INFO L85 PathProgramCache]: Analyzing trace with hash 339971472, now seen corresponding path program 18 times [2022-12-12 12:53:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:36,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20041934] [2022-12-12 12:53:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:36,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:36,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:36,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:36,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20041934] [2022-12-12 12:53:36,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20041934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:36,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:36,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:36,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681313025] [2022-12-12 12:53:36,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:36,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:36,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:36,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:36,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:36,955 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:36,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 697 places, 2789 transitions, 25246 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:36,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:36,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:36,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:41,766 INFO L130 PetriNetUnfolder]: 7899/21728 cut-off events. [2022-12-12 12:53:41,767 INFO L131 PetriNetUnfolder]: For 45645/47006 co-relation queries the response was YES. [2022-12-12 12:53:41,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83745 conditions, 21728 events. 7899/21728 cut-off events. For 45645/47006 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 212299 event pairs, 1059 based on Foata normal form. 117/20409 useless extension candidates. Maximal degree in co-relation 78353. Up to 9640 conditions per place. [2022-12-12 12:53:41,883 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1654 selfloop transitions, 500 changer transitions 392/2802 dead transitions. [2022-12-12 12:53:41,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 745 places, 2802 transitions, 30507 flow [2022-12-12 12:53:41,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 12:53:41,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 12:53:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10349 transitions. [2022-12-12 12:53:41,888 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6285835762876579 [2022-12-12 12:53:41,888 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 440 predicate places. [2022-12-12 12:53:41,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 745 places, 2802 transitions, 30507 flow [2022-12-12 12:53:42,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 711 places, 2802 transitions, 25445 flow, removed 1980 selfloop flow, removed 34 redundant places. [2022-12-12 12:53:42,117 INFO L495 AbstractCegarLoop]: Abstraction has has 711 places, 2802 transitions, 25445 flow [2022-12-12 12:53:42,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:42,118 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:42,122 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] [2022-12-12 12:53:42,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-12 12:53:42,123 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:42,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:42,123 INFO L85 PathProgramCache]: Analyzing trace with hash -885471926, now seen corresponding path program 19 times [2022-12-12 12:53:42,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:42,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965888271] [2022-12-12 12:53:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:42,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:42,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965888271] [2022-12-12 12:53:42,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965888271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:42,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:42,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:42,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489903883] [2022-12-12 12:53:42,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:42,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:42,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:42,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:42,552 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:42,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 711 places, 2802 transitions, 25445 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:42,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:42,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:42,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:47,704 INFO L130 PetriNetUnfolder]: 7898/21719 cut-off events. [2022-12-12 12:53:47,704 INFO L131 PetriNetUnfolder]: For 45527/46948 co-relation queries the response was YES. [2022-12-12 12:53:47,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83816 conditions, 21719 events. 7898/21719 cut-off events. For 45527/46948 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 212085 event pairs, 1058 based on Foata normal form. 111/20398 useless extension candidates. Maximal degree in co-relation 78365. Up to 9640 conditions per place. [2022-12-12 12:53:47,813 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1650 selfloop transitions, 491 changer transitions 414/2811 dead transitions. [2022-12-12 12:53:47,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 2811 transitions, 30705 flow [2022-12-12 12:53:47,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:53:47,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:53:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10158 transitions. [2022-12-12 12:53:47,819 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6298363095238095 [2022-12-12 12:53:47,819 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 453 predicate places. [2022-12-12 12:53:47,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 758 places, 2811 transitions, 30705 flow [2022-12-12 12:53:47,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 722 places, 2811 transitions, 25429 flow, removed 2091 selfloop flow, removed 36 redundant places. [2022-12-12 12:53:47,888 INFO L495 AbstractCegarLoop]: Abstraction has has 722 places, 2811 transitions, 25429 flow [2022-12-12 12:53:47,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:47,889 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:47,889 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] [2022-12-12 12:53:47,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-12 12:53:47,889 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:47,889 INFO L85 PathProgramCache]: Analyzing trace with hash -508711346, now seen corresponding path program 20 times [2022-12-12 12:53:47,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:47,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599279150] [2022-12-12 12:53:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:47,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:48,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:48,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599279150] [2022-12-12 12:53:48,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599279150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:48,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:48,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:48,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800728934] [2022-12-12 12:53:48,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:48,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:48,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:48,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:48,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:48,252 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:48,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 722 places, 2811 transitions, 25429 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:48,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:48,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:48,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:53,197 INFO L130 PetriNetUnfolder]: 7905/21777 cut-off events. [2022-12-12 12:53:53,197 INFO L131 PetriNetUnfolder]: For 44332/45748 co-relation queries the response was YES. [2022-12-12 12:53:53,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83711 conditions, 21777 events. 7905/21777 cut-off events. For 44332/45748 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 213251 event pairs, 1052 based on Foata normal form. 124/20468 useless extension candidates. Maximal degree in co-relation 78165. Up to 9640 conditions per place. [2022-12-12 12:53:53,295 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1648 selfloop transitions, 496 changer transitions 432/2832 dead transitions. [2022-12-12 12:53:53,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 772 places, 2832 transitions, 30848 flow [2022-12-12 12:53:53,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-12 12:53:53,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-12 12:53:53,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 10730 transitions. [2022-12-12 12:53:53,300 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6261671335200747 [2022-12-12 12:53:53,300 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 467 predicate places. [2022-12-12 12:53:53,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 772 places, 2832 transitions, 30848 flow [2022-12-12 12:53:53,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 746 places, 2832 transitions, 25728 flow, removed 2046 selfloop flow, removed 26 redundant places. [2022-12-12 12:53:53,359 INFO L495 AbstractCegarLoop]: Abstraction has has 746 places, 2832 transitions, 25728 flow [2022-12-12 12:53:53,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:53,359 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:53,360 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] [2022-12-12 12:53:53,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-12 12:53:53,360 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:53,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash -558027634, now seen corresponding path program 21 times [2022-12-12 12:53:53,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:53,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867974108] [2022-12-12 12:53:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:53,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:53,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:53,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867974108] [2022-12-12 12:53:53,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867974108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:53,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:53,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:53,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649819802] [2022-12-12 12:53:53,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:53,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:53,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:53,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:53,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:53,747 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:53,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 2832 transitions, 25728 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:53,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:53,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:53,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:53:58,771 INFO L130 PetriNetUnfolder]: 7904/21775 cut-off events. [2022-12-12 12:53:58,771 INFO L131 PetriNetUnfolder]: For 45355/46774 co-relation queries the response was YES. [2022-12-12 12:53:58,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83825 conditions, 21775 events. 7904/21775 cut-off events. For 45355/46774 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 213265 event pairs, 1053 based on Foata normal form. 120/20463 useless extension candidates. Maximal degree in co-relation 78224. Up to 9640 conditions per place. [2022-12-12 12:53:58,880 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1642 selfloop transitions, 489 changer transitions 452/2839 dead transitions. [2022-12-12 12:53:58,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 2839 transitions, 31005 flow [2022-12-12 12:53:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 12:53:58,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 12:53:58,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9938 transitions. [2022-12-12 12:53:58,885 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.629305977710233 [2022-12-12 12:53:58,885 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 487 predicate places. [2022-12-12 12:53:58,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 2839 transitions, 31005 flow [2022-12-12 12:53:58,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 758 places, 2839 transitions, 26080 flow, removed 1944 selfloop flow, removed 34 redundant places. [2022-12-12 12:53:58,944 INFO L495 AbstractCegarLoop]: Abstraction has has 758 places, 2839 transitions, 26080 flow [2022-12-12 12:53:58,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:58,944 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:53:58,944 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] [2022-12-12 12:53:58,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-12 12:53:58,944 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:53:58,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:53:58,945 INFO L85 PathProgramCache]: Analyzing trace with hash 349164042, now seen corresponding path program 22 times [2022-12-12 12:53:58,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:53:58,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814593462] [2022-12-12 12:53:58,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:53:58,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:53:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:53:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:53:59,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:53:59,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814593462] [2022-12-12 12:53:59,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814593462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:53:59,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:53:59,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:53:59,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198761584] [2022-12-12 12:53:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:53:59,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:53:59,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:53:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:53:59,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:53:59,272 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:53:59,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 758 places, 2839 transitions, 26080 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:53:59,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:53:59,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:53:59,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:04,598 INFO L130 PetriNetUnfolder]: 7904/21766 cut-off events. [2022-12-12 12:54:04,599 INFO L131 PetriNetUnfolder]: For 47073/48548 co-relation queries the response was YES. [2022-12-12 12:54:04,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84107 conditions, 21766 events. 7904/21766 cut-off events. For 47073/48548 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 213268 event pairs, 1053 based on Foata normal form. 116/20450 useless extension candidates. Maximal degree in co-relation 78467. Up to 9640 conditions per place. [2022-12-12 12:54:04,717 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1626 selfloop transitions, 482 changer transitions 474/2838 dead transitions. [2022-12-12 12:54:04,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 808 places, 2838 transitions, 31228 flow [2022-12-12 12:54:04,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-12 12:54:04,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-12 12:54:04,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 10731 transitions. [2022-12-12 12:54:04,722 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6262254901960784 [2022-12-12 12:54:04,722 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 503 predicate places. [2022-12-12 12:54:04,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 808 places, 2838 transitions, 31228 flow [2022-12-12 12:54:04,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 2838 transitions, 26153 flow, removed 2027 selfloop flow, removed 30 redundant places. [2022-12-12 12:54:04,791 INFO L495 AbstractCegarLoop]: Abstraction has has 778 places, 2838 transitions, 26153 flow [2022-12-12 12:54:04,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:04,791 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:04,791 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] [2022-12-12 12:54:04,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-12 12:54:04,791 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:04,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:04,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1273678380, now seen corresponding path program 23 times [2022-12-12 12:54:04,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:04,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709435551] [2022-12-12 12:54:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:04,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:05,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:05,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709435551] [2022-12-12 12:54:05,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709435551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:05,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:05,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:05,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191978786] [2022-12-12 12:54:05,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:05,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:05,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:05,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:05,114 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:05,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 778 places, 2838 transitions, 26153 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:05,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:05,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:05,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:10,599 INFO L130 PetriNetUnfolder]: 8524/23531 cut-off events. [2022-12-12 12:54:10,599 INFO L131 PetriNetUnfolder]: For 53562/55077 co-relation queries the response was YES. [2022-12-12 12:54:10,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91731 conditions, 23531 events. 8524/23531 cut-off events. For 53562/55077 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 234984 event pairs, 1193 based on Foata normal form. 141/22125 useless extension candidates. Maximal degree in co-relation 85038. Up to 10250 conditions per place. [2022-12-12 12:54:10,722 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1953 selfloop transitions, 499 changer transitions 501/3209 dead transitions. [2022-12-12 12:54:10,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 832 places, 3209 transitions, 36265 flow [2022-12-12 12:54:10,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-12 12:54:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-12-12 12:54:10,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 11588 transitions. [2022-12-12 12:54:10,728 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6270562770562771 [2022-12-12 12:54:10,728 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 527 predicate places. [2022-12-12 12:54:10,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 832 places, 3209 transitions, 36265 flow [2022-12-12 12:54:10,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 817 places, 3209 transitions, 31675 flow, removed 2085 selfloop flow, removed 15 redundant places. [2022-12-12 12:54:10,792 INFO L495 AbstractCegarLoop]: Abstraction has has 817 places, 3209 transitions, 31675 flow [2022-12-12 12:54:10,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:10,793 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:10,793 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] [2022-12-12 12:54:10,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-12 12:54:10,793 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:10,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:10,793 INFO L85 PathProgramCache]: Analyzing trace with hash -833711584, now seen corresponding path program 24 times [2022-12-12 12:54:10,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:10,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903653919] [2022-12-12 12:54:10,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:10,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:11,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:11,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903653919] [2022-12-12 12:54:11,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903653919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:11,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:11,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477231195] [2022-12-12 12:54:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:11,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:11,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:11,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:11,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:11,186 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:11,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 817 places, 3209 transitions, 31675 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:11,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:11,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:11,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:17,058 INFO L130 PetriNetUnfolder]: 8582/23685 cut-off events. [2022-12-12 12:54:17,058 INFO L131 PetriNetUnfolder]: For 63800/65381 co-relation queries the response was YES. [2022-12-12 12:54:17,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99245 conditions, 23685 events. 8582/23685 cut-off events. For 63800/65381 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 236785 event pairs, 1192 based on Foata normal form. 159/22295 useless extension candidates. Maximal degree in co-relation 92263. Up to 10250 conditions per place. [2022-12-12 12:54:17,185 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1975 selfloop transitions, 520 changer transitions 519/3270 dead transitions. [2022-12-12 12:54:17,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 868 places, 3270 transitions, 38354 flow [2022-12-12 12:54:17,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-12 12:54:17,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-12-12 12:54:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 10977 transitions. [2022-12-12 12:54:17,190 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6282623626373627 [2022-12-12 12:54:17,191 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 563 predicate places. [2022-12-12 12:54:17,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 868 places, 3270 transitions, 38354 flow [2022-12-12 12:54:17,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 843 places, 3270 transitions, 32307 flow, removed 2439 selfloop flow, removed 25 redundant places. [2022-12-12 12:54:17,271 INFO L495 AbstractCegarLoop]: Abstraction has has 843 places, 3270 transitions, 32307 flow [2022-12-12 12:54:17,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:17,272 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:17,272 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] [2022-12-12 12:54:17,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-12 12:54:17,272 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:17,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:17,273 INFO L85 PathProgramCache]: Analyzing trace with hash 934033340, now seen corresponding path program 25 times [2022-12-12 12:54:17,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:17,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051640667] [2022-12-12 12:54:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:17,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:17,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:17,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051640667] [2022-12-12 12:54:17,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051640667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:17,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:17,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:17,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027247483] [2022-12-12 12:54:17,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:17,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:17,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:17,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:17,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:17,600 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:17,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 843 places, 3270 transitions, 32307 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:17,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:17,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:17,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:23,002 INFO L130 PetriNetUnfolder]: 8581/23678 cut-off events. [2022-12-12 12:54:23,002 INFO L131 PetriNetUnfolder]: For 62223/63758 co-relation queries the response was YES. [2022-12-12 12:54:23,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99261 conditions, 23678 events. 8581/23678 cut-off events. For 62223/63758 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 237057 event pairs, 1185 based on Foata normal form. 166/22299 useless extension candidates. Maximal degree in co-relation 92199. Up to 10250 conditions per place. [2022-12-12 12:54:23,132 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1969 selfloop transitions, 513 changer transitions 539/3277 dead transitions. [2022-12-12 12:54:23,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 890 places, 3277 transitions, 38454 flow [2022-12-12 12:54:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:54:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:54:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10185 transitions. [2022-12-12 12:54:23,137 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6315104166666666 [2022-12-12 12:54:23,138 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 585 predicate places. [2022-12-12 12:54:23,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 890 places, 3277 transitions, 38454 flow [2022-12-12 12:54:23,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 857 places, 3277 transitions, 32572 flow, removed 2404 selfloop flow, removed 33 redundant places. [2022-12-12 12:54:23,408 INFO L495 AbstractCegarLoop]: Abstraction has has 857 places, 3277 transitions, 32572 flow [2022-12-12 12:54:23,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:23,409 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:23,409 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] [2022-12-12 12:54:23,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-12 12:54:23,410 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:23,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:23,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1427277692, now seen corresponding path program 26 times [2022-12-12 12:54:23,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:23,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771458741] [2022-12-12 12:54:23,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:23,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:23,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:23,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771458741] [2022-12-12 12:54:23,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771458741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:23,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:23,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:23,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895327903] [2022-12-12 12:54:23,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:23,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:23,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:23,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:23,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:23,879 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:23,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 857 places, 3277 transitions, 32572 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:23,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:23,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:23,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:29,104 INFO L130 PetriNetUnfolder]: 8665/23998 cut-off events. [2022-12-12 12:54:29,104 INFO L131 PetriNetUnfolder]: For 64409/65942 co-relation queries the response was YES. [2022-12-12 12:54:29,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100911 conditions, 23998 events. 8665/23998 cut-off events. For 64409/65942 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 241566 event pairs, 1186 based on Foata normal form. 187/22629 useless extension candidates. Maximal degree in co-relation 93130. Up to 10256 conditions per place. [2022-12-12 12:54:29,231 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2031 selfloop transitions, 540 changer transitions 565/3392 dead transitions. [2022-12-12 12:54:29,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 909 places, 3392 transitions, 40290 flow [2022-12-12 12:54:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 12:54:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 12:54:29,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 11158 transitions. [2022-12-12 12:54:29,236 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6265723270440252 [2022-12-12 12:54:29,237 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 604 predicate places. [2022-12-12 12:54:29,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 909 places, 3392 transitions, 40290 flow [2022-12-12 12:54:29,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 892 places, 3392 transitions, 34834 flow, removed 2472 selfloop flow, removed 17 redundant places. [2022-12-12 12:54:29,320 INFO L495 AbstractCegarLoop]: Abstraction has has 892 places, 3392 transitions, 34834 flow [2022-12-12 12:54:29,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:29,321 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:29,321 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] [2022-12-12 12:54:29,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-12 12:54:29,322 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:29,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:29,322 INFO L85 PathProgramCache]: Analyzing trace with hash -517383068, now seen corresponding path program 27 times [2022-12-12 12:54:29,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:29,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919063139] [2022-12-12 12:54:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:29,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:29,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:29,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919063139] [2022-12-12 12:54:29,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919063139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:29,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:29,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105278213] [2022-12-12 12:54:29,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:29,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:29,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:29,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:29,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:29,993 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:29,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 892 places, 3392 transitions, 34834 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:29,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:29,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:29,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:35,732 INFO L130 PetriNetUnfolder]: 8682/24087 cut-off events. [2022-12-12 12:54:35,733 INFO L131 PetriNetUnfolder]: For 71250/72796 co-relation queries the response was YES. [2022-12-12 12:54:35,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102881 conditions, 24087 events. 8682/24087 cut-off events. For 71250/72796 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 242834 event pairs, 1188 based on Foata normal form. 162/22689 useless extension candidates. Maximal degree in co-relation 94744. Up to 10256 conditions per place. [2022-12-12 12:54:35,863 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2032 selfloop transitions, 539 changer transitions 587/3414 dead transitions. [2022-12-12 12:54:35,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 3414 transitions, 41480 flow [2022-12-12 12:54:35,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-12 12:54:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-12-12 12:54:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 11392 transitions. [2022-12-12 12:54:35,875 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6278659611992945 [2022-12-12 12:54:35,875 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 640 predicate places. [2022-12-12 12:54:35,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 3414 transitions, 41480 flow [2022-12-12 12:54:35,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 912 places, 3414 transitions, 35203 flow, removed 2524 selfloop flow, removed 33 redundant places. [2022-12-12 12:54:35,968 INFO L495 AbstractCegarLoop]: Abstraction has has 912 places, 3414 transitions, 35203 flow [2022-12-12 12:54:35,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:35,968 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:35,968 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] [2022-12-12 12:54:35,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-12 12:54:35,969 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:35,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:35,969 INFO L85 PathProgramCache]: Analyzing trace with hash 55419764, now seen corresponding path program 28 times [2022-12-12 12:54:35,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:35,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371545985] [2022-12-12 12:54:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:35,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:36,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:36,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371545985] [2022-12-12 12:54:36,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371545985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:36,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:36,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:36,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580066986] [2022-12-12 12:54:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:36,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:36,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:36,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:36,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:36,289 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:36,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 912 places, 3414 transitions, 35203 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:36,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:36,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:36,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:41,867 INFO L130 PetriNetUnfolder]: 8695/24171 cut-off events. [2022-12-12 12:54:41,868 INFO L131 PetriNetUnfolder]: For 72290/73811 co-relation queries the response was YES. [2022-12-12 12:54:41,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103474 conditions, 24171 events. 8695/24171 cut-off events. For 72290/73811 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 243907 event pairs, 1191 based on Foata normal form. 148/22752 useless extension candidates. Maximal degree in co-relation 72667. Up to 10256 conditions per place. [2022-12-12 12:54:41,992 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1991 selfloop transitions, 594 changer transitions 604/3445 dead transitions. [2022-12-12 12:54:41,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 3445 transitions, 42020 flow [2022-12-12 12:54:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 12:54:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 12:54:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10571 transitions. [2022-12-12 12:54:41,997 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6292261904761904 [2022-12-12 12:54:41,997 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 656 predicate places. [2022-12-12 12:54:41,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 3445 transitions, 42020 flow [2022-12-12 12:54:42,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 940 places, 3445 transitions, 35537 flow, removed 2776 selfloop flow, removed 21 redundant places. [2022-12-12 12:54:42,092 INFO L495 AbstractCegarLoop]: Abstraction has has 940 places, 3445 transitions, 35537 flow [2022-12-12 12:54:42,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:42,093 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:42,093 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] [2022-12-12 12:54:42,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-12 12:54:42,093 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:42,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:42,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1959598638, now seen corresponding path program 29 times [2022-12-12 12:54:42,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:42,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015741106] [2022-12-12 12:54:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:42,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:42,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015741106] [2022-12-12 12:54:42,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015741106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:42,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:42,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:42,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695562259] [2022-12-12 12:54:42,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:42,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:42,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:42,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:42,454 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:42,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 940 places, 3445 transitions, 35537 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:42,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:42,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:42,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:48,194 INFO L130 PetriNetUnfolder]: 8702/24229 cut-off events. [2022-12-12 12:54:48,194 INFO L131 PetriNetUnfolder]: For 74112/75622 co-relation queries the response was YES. [2022-12-12 12:54:48,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103566 conditions, 24229 events. 8702/24229 cut-off events. For 74112/75622 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 244994 event pairs, 1195 based on Foata normal form. 156/22817 useless extension candidates. Maximal degree in co-relation 72370. Up to 10256 conditions per place. [2022-12-12 12:54:48,334 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2003 selfloop transitions, 585 changer transitions 622/3466 dead transitions. [2022-12-12 12:54:48,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 991 places, 3466 transitions, 42255 flow [2022-12-12 12:54:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-12 12:54:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-12-12 12:54:48,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 10967 transitions. [2022-12-12 12:54:48,340 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6276900183150184 [2022-12-12 12:54:48,341 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 686 predicate places. [2022-12-12 12:54:48,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 991 places, 3466 transitions, 42255 flow [2022-12-12 12:54:48,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 964 places, 3466 transitions, 36079 flow, removed 2520 selfloop flow, removed 27 redundant places. [2022-12-12 12:54:48,442 INFO L495 AbstractCegarLoop]: Abstraction has has 964 places, 3466 transitions, 36079 flow [2022-12-12 12:54:48,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:48,443 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:48,443 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] [2022-12-12 12:54:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-12 12:54:48,443 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 40336054, now seen corresponding path program 30 times [2022-12-12 12:54:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:48,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757521254] [2022-12-12 12:54:48,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:48,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:48,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:48,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757521254] [2022-12-12 12:54:48,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757521254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:48,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:48,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:48,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187967098] [2022-12-12 12:54:48,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:48,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:48,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:48,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:48,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:48,785 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:48,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 964 places, 3466 transitions, 36079 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:48,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:48,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:48,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:54:54,834 INFO L130 PetriNetUnfolder]: 8701/24190 cut-off events. [2022-12-12 12:54:54,834 INFO L131 PetriNetUnfolder]: For 76180/77724 co-relation queries the response was YES. [2022-12-12 12:54:54,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103914 conditions, 24190 events. 8701/24190 cut-off events. For 76180/77724 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 244640 event pairs, 1188 based on Foata normal form. 158/22789 useless extension candidates. Maximal degree in co-relation 95426. Up to 10256 conditions per place. [2022-12-12 12:54:54,966 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1999 selfloop transitions, 579 changer transitions 642/3476 dead transitions. [2022-12-12 12:54:54,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1011 places, 3476 transitions, 42694 flow [2022-12-12 12:54:54,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:54:54,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:54:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10175 transitions. [2022-12-12 12:54:54,972 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.630890376984127 [2022-12-12 12:54:54,972 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 706 predicate places. [2022-12-12 12:54:54,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1011 places, 3476 transitions, 42694 flow [2022-12-12 12:54:55,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 977 places, 3476 transitions, 36508 flow, removed 2506 selfloop flow, removed 34 redundant places. [2022-12-12 12:54:55,078 INFO L495 AbstractCegarLoop]: Abstraction has has 977 places, 3476 transitions, 36508 flow [2022-12-12 12:54:55,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:55,078 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:54:55,078 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] [2022-12-12 12:54:55,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-12 12:54:55,078 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:54:55,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:54:55,079 INFO L85 PathProgramCache]: Analyzing trace with hash 213192372, now seen corresponding path program 31 times [2022-12-12 12:54:55,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:54:55,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270348039] [2022-12-12 12:54:55,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:54:55,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:54:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:54:55,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:54:55,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:54:55,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270348039] [2022-12-12 12:54:55,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270348039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:54:55,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:54:55,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:54:55,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288401594] [2022-12-12 12:54:55,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:54:55,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:54:55,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:54:55,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:54:55,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:54:55,398 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:54:55,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 977 places, 3476 transitions, 36508 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:54:55,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:54:55,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:54:55,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:01,172 INFO L130 PetriNetUnfolder]: 8704/24255 cut-off events. [2022-12-12 12:55:01,172 INFO L131 PetriNetUnfolder]: For 78260/79820 co-relation queries the response was YES. [2022-12-12 12:55:01,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104447 conditions, 24255 events. 8704/24255 cut-off events. For 78260/79820 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 245502 event pairs, 1195 based on Foata normal form. 152/22840 useless extension candidates. Maximal degree in co-relation 72533. Up to 10256 conditions per place. [2022-12-12 12:55:01,315 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1985 selfloop transitions, 585 changer transitions 663/3489 dead transitions. [2022-12-12 12:55:01,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 3489 transitions, 43219 flow [2022-12-12 12:55:01,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 12:55:01,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 12:55:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10570 transitions. [2022-12-12 12:55:01,320 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2022-12-12 12:55:01,320 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 721 predicate places. [2022-12-12 12:55:01,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 3489 transitions, 43219 flow [2022-12-12 12:55:01,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 994 places, 3489 transitions, 37035 flow, removed 2509 selfloop flow, removed 32 redundant places. [2022-12-12 12:55:01,419 INFO L495 AbstractCegarLoop]: Abstraction has has 994 places, 3489 transitions, 37035 flow [2022-12-12 12:55:01,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:01,420 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:01,420 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] [2022-12-12 12:55:01,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-12 12:55:01,421 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:01,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash 2021667282, now seen corresponding path program 32 times [2022-12-12 12:55:01,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:01,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749337098] [2022-12-12 12:55:01,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:01,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:01,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:01,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749337098] [2022-12-12 12:55:01,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749337098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:01,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:01,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:01,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776480355] [2022-12-12 12:55:01,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:01,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:01,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:01,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:01,777 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:01,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 994 places, 3489 transitions, 37035 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:01,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:01,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:01,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:07,818 INFO L130 PetriNetUnfolder]: 8703/24247 cut-off events. [2022-12-12 12:55:07,818 INFO L131 PetriNetUnfolder]: For 80314/81837 co-relation queries the response was YES. [2022-12-12 12:55:07,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104828 conditions, 24247 events. 8703/24247 cut-off events. For 80314/81837 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 245688 event pairs, 1193 based on Foata normal form. 155/22842 useless extension candidates. Maximal degree in co-relation 95949. Up to 10256 conditions per place. [2022-12-12 12:55:07,931 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1987 selfloop transitions, 570 changer transitions 682/3495 dead transitions. [2022-12-12 12:55:07,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1046 places, 3495 transitions, 43652 flow [2022-12-12 12:55:07,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 12:55:07,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 12:55:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 11174 transitions. [2022-12-12 12:55:07,936 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6274707996406109 [2022-12-12 12:55:07,936 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 741 predicate places. [2022-12-12 12:55:07,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1046 places, 3495 transitions, 43652 flow [2022-12-12 12:55:08,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1014 places, 3495 transitions, 37121 flow, removed 2609 selfloop flow, removed 32 redundant places. [2022-12-12 12:55:08,026 INFO L495 AbstractCegarLoop]: Abstraction has has 1014 places, 3495 transitions, 37121 flow [2022-12-12 12:55:08,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:08,026 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:08,026 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] [2022-12-12 12:55:08,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-12 12:55:08,027 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:08,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:08,027 INFO L85 PathProgramCache]: Analyzing trace with hash 629228724, now seen corresponding path program 33 times [2022-12-12 12:55:08,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:08,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884593890] [2022-12-12 12:55:08,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:08,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:08,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:08,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:08,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884593890] [2022-12-12 12:55:08,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884593890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:08,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:08,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:08,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490995851] [2022-12-12 12:55:08,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:08,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:08,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:08,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:08,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:08,337 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:08,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1014 places, 3495 transitions, 37121 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:08,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:08,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:08,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:13,992 INFO L130 PetriNetUnfolder]: 8710/24320 cut-off events. [2022-12-12 12:55:13,992 INFO L131 PetriNetUnfolder]: For 82477/84024 co-relation queries the response was YES. [2022-12-12 12:55:14,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105096 conditions, 24320 events. 8710/24320 cut-off events. For 82477/84024 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 246605 event pairs, 1198 based on Foata normal form. 172/22925 useless extension candidates. Maximal degree in co-relation 72621. Up to 10256 conditions per place. [2022-12-12 12:55:14,104 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2018 selfloop transitions, 542 changer transitions 700/3516 dead transitions. [2022-12-12 12:55:14,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1061 places, 3516 transitions, 43947 flow [2022-12-12 12:55:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:55:14,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:55:14,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10122 transitions. [2022-12-12 12:55:14,109 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6276041666666666 [2022-12-12 12:55:14,109 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 756 predicate places. [2022-12-12 12:55:14,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1061 places, 3516 transitions, 43947 flow [2022-12-12 12:55:14,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1040 places, 3516 transitions, 38593 flow, removed 2359 selfloop flow, removed 21 redundant places. [2022-12-12 12:55:14,194 INFO L495 AbstractCegarLoop]: Abstraction has has 1040 places, 3516 transitions, 38593 flow [2022-12-12 12:55:14,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:14,194 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:14,194 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] [2022-12-12 12:55:14,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-12 12:55:14,194 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1379304526, now seen corresponding path program 34 times [2022-12-12 12:55:14,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:14,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177009583] [2022-12-12 12:55:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:14,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:14,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:14,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177009583] [2022-12-12 12:55:14,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177009583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:14,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:14,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:14,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660039389] [2022-12-12 12:55:14,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:14,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:14,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:14,502 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:14,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1040 places, 3516 transitions, 38593 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:14,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:14,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:14,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:20,104 INFO L130 PetriNetUnfolder]: 8710/24341 cut-off events. [2022-12-12 12:55:20,104 INFO L131 PetriNetUnfolder]: For 90134/91668 co-relation queries the response was YES. [2022-12-12 12:55:20,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107026 conditions, 24341 events. 8710/24341 cut-off events. For 90134/91668 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 246960 event pairs, 1196 based on Foata normal form. 155/22926 useless extension candidates. Maximal degree in co-relation 73737. Up to 10256 conditions per place. [2022-12-12 12:55:20,231 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1965 selfloop transitions, 569 changer transitions 725/3515 dead transitions. [2022-12-12 12:55:20,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1087 places, 3515 transitions, 45091 flow [2022-12-12 12:55:20,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:55:20,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:55:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10178 transitions. [2022-12-12 12:55:20,236 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6310763888888888 [2022-12-12 12:55:20,236 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 782 predicate places. [2022-12-12 12:55:20,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1087 places, 3515 transitions, 45091 flow [2022-12-12 12:55:20,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1053 places, 3515 transitions, 38443 flow, removed 2638 selfloop flow, removed 34 redundant places. [2022-12-12 12:55:20,346 INFO L495 AbstractCegarLoop]: Abstraction has has 1053 places, 3515 transitions, 38443 flow [2022-12-12 12:55:20,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:20,346 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:20,346 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] [2022-12-12 12:55:20,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-12 12:55:20,347 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:20,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 590508124, now seen corresponding path program 35 times [2022-12-12 12:55:20,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:20,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343467873] [2022-12-12 12:55:20,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:20,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:20,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:20,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343467873] [2022-12-12 12:55:20,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343467873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:20,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:20,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:20,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489171283] [2022-12-12 12:55:20,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:20,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:20,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:20,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:20,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:20,663 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:20,664 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1053 places, 3515 transitions, 38443 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:20,664 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:20,664 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:20,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:26,250 INFO L130 PetriNetUnfolder]: 8709/24299 cut-off events. [2022-12-12 12:55:26,250 INFO L131 PetriNetUnfolder]: For 89418/90972 co-relation queries the response was YES. [2022-12-12 12:55:26,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106778 conditions, 24299 events. 8709/24299 cut-off events. For 89418/90972 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 246565 event pairs, 1188 based on Foata normal form. 180/22917 useless extension candidates. Maximal degree in co-relation 97525. Up to 10256 conditions per place. [2022-12-12 12:55:26,361 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1991 selfloop transitions, 530 changer transitions 745/3522 dead transitions. [2022-12-12 12:55:26,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 3522 transitions, 45110 flow [2022-12-12 12:55:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 12:55:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 12:55:26,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 9330 transitions. [2022-12-12 12:55:26,366 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6310876623376623 [2022-12-12 12:55:26,366 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 791 predicate places. [2022-12-12 12:55:26,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1096 places, 3522 transitions, 45110 flow [2022-12-12 12:55:26,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1065 places, 3522 transitions, 39238 flow, removed 2420 selfloop flow, removed 31 redundant places. [2022-12-12 12:55:26,459 INFO L495 AbstractCegarLoop]: Abstraction has has 1065 places, 3522 transitions, 39238 flow [2022-12-12 12:55:26,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:26,459 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:26,459 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] [2022-12-12 12:55:26,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-12 12:55:26,460 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:26,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:26,460 INFO L85 PathProgramCache]: Analyzing trace with hash -612799896, now seen corresponding path program 36 times [2022-12-12 12:55:26,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:26,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098602493] [2022-12-12 12:55:26,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:26,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:26,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:26,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098602493] [2022-12-12 12:55:26,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098602493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:26,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:26,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:26,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116270663] [2022-12-12 12:55:26,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:26,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:26,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:26,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:26,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:26,799 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:26,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1065 places, 3522 transitions, 39238 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:26,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:26,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:26,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:32,659 INFO L130 PetriNetUnfolder]: 8743/24473 cut-off events. [2022-12-12 12:55:32,659 INFO L131 PetriNetUnfolder]: For 99525/101087 co-relation queries the response was YES. [2022-12-12 12:55:32,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108583 conditions, 24473 events. 8743/24473 cut-off events. For 99525/101087 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 249286 event pairs, 1198 based on Foata normal form. 188/23094 useless extension candidates. Maximal degree in co-relation 98582. Up to 10256 conditions per place. [2022-12-12 12:55:32,775 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1982 selfloop transitions, 528 changer transitions 799/3565 dead transitions. [2022-12-12 12:55:32,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1110 places, 3565 transitions, 46622 flow [2022-12-12 12:55:32,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-12 12:55:32,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-12-12 12:55:32,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 9754 transitions. [2022-12-12 12:55:32,793 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6310817805383023 [2022-12-12 12:55:32,793 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 805 predicate places. [2022-12-12 12:55:32,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1110 places, 3565 transitions, 46622 flow [2022-12-12 12:55:32,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1081 places, 3565 transitions, 39850 flow, removed 2772 selfloop flow, removed 29 redundant places. [2022-12-12 12:55:32,897 INFO L495 AbstractCegarLoop]: Abstraction has has 1081 places, 3565 transitions, 39850 flow [2022-12-12 12:55:32,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:32,898 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:32,898 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] [2022-12-12 12:55:32,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-12 12:55:32,898 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:32,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash 365207754, now seen corresponding path program 37 times [2022-12-12 12:55:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:32,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560816550] [2022-12-12 12:55:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:32,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:33,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:33,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560816550] [2022-12-12 12:55:33,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560816550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:33,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:33,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:33,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911254149] [2022-12-12 12:55:33,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:33,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:33,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:33,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:33,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:33,219 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:33,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1081 places, 3565 transitions, 39850 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:33,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:33,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:33,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:38,968 INFO L130 PetriNetUnfolder]: 8743/24489 cut-off events. [2022-12-12 12:55:38,968 INFO L131 PetriNetUnfolder]: For 100677/102247 co-relation queries the response was YES. [2022-12-12 12:55:39,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108006 conditions, 24489 events. 8743/24489 cut-off events. For 100677/102247 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 249648 event pairs, 1194 based on Foata normal form. 184/23101 useless extension candidates. Maximal degree in co-relation 73334. Up to 10256 conditions per place. [2022-12-12 12:55:39,097 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 1977 selfloop transitions, 513 changer transitions 818/3564 dead transitions. [2022-12-12 12:55:39,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1127 places, 3564 transitions, 46446 flow [2022-12-12 12:55:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 12:55:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 12:55:39,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9929 transitions. [2022-12-12 12:55:39,101 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6287360688956434 [2022-12-12 12:55:39,102 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 822 predicate places. [2022-12-12 12:55:39,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1127 places, 3564 transitions, 46446 flow [2022-12-12 12:55:39,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1105 places, 3564 transitions, 40392 flow, removed 2601 selfloop flow, removed 22 redundant places. [2022-12-12 12:55:39,290 INFO L495 AbstractCegarLoop]: Abstraction has has 1105 places, 3564 transitions, 40392 flow [2022-12-12 12:55:39,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:39,290 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:39,291 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] [2022-12-12 12:55:39,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-12 12:55:39,291 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:39,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:39,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1156522762, now seen corresponding path program 38 times [2022-12-12 12:55:39,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:39,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349651838] [2022-12-12 12:55:39,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:39,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:39,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349651838] [2022-12-12 12:55:39,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349651838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:39,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:39,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:39,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432386273] [2022-12-12 12:55:39,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:39,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:39,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:39,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:39,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:39,602 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:39,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1105 places, 3564 transitions, 40392 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:39,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:39,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:39,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:45,354 INFO L130 PetriNetUnfolder]: 9319/26167 cut-off events. [2022-12-12 12:55:45,354 INFO L131 PetriNetUnfolder]: For 109298/110921 co-relation queries the response was YES. [2022-12-12 12:55:45,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116261 conditions, 26167 events. 9319/26167 cut-off events. For 109298/110921 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 270763 event pairs, 1348 based on Foata normal form. 202/24674 useless extension candidates. Maximal degree in co-relation 77869. Up to 10858 conditions per place. [2022-12-12 12:55:45,505 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2195 selfloop transitions, 581 changer transitions 852/3884 dead transitions. [2022-12-12 12:55:45,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1150 places, 3884 transitions, 51484 flow [2022-12-12 12:55:45,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-12 12:55:45,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-12-12 12:55:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 9756 transitions. [2022-12-12 12:55:45,509 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6312111801242236 [2022-12-12 12:55:45,510 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 845 predicate places. [2022-12-12 12:55:45,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1150 places, 3884 transitions, 51484 flow [2022-12-12 12:55:45,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1142 places, 3884 transitions, 46030 flow, removed 2620 selfloop flow, removed 8 redundant places. [2022-12-12 12:55:45,625 INFO L495 AbstractCegarLoop]: Abstraction has has 1142 places, 3884 transitions, 46030 flow [2022-12-12 12:55:45,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:45,626 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:45,626 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] [2022-12-12 12:55:45,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-12 12:55:45,626 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:45,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1547497674, now seen corresponding path program 39 times [2022-12-12 12:55:45,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:45,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405465958] [2022-12-12 12:55:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:45,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:46,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:46,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405465958] [2022-12-12 12:55:46,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405465958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:46,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:46,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-12 12:55:46,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601920209] [2022-12-12 12:55:46,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:46,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-12 12:55:46,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:46,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-12 12:55:46,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2022-12-12 12:55:46,284 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 336 [2022-12-12 12:55:46,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1142 places, 3884 transitions, 46030 flow. Second operand has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:46,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:46,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 336 [2022-12-12 12:55:46,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:55:53,854 INFO L130 PetriNetUnfolder]: 9484/26724 cut-off events. [2022-12-12 12:55:53,854 INFO L131 PetriNetUnfolder]: For 108898/110687 co-relation queries the response was YES. [2022-12-12 12:55:53,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125386 conditions, 26724 events. 9484/26724 cut-off events. For 108898/110687 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 278681 event pairs, 1355 based on Foata normal form. 214/25221 useless extension candidates. Maximal degree in co-relation 113382. Up to 11718 conditions per place. [2022-12-12 12:55:53,989 INFO L137 encePairwiseOnDemand]: 291/336 looper letters, 2625 selfloop transitions, 423 changer transitions 894/4103 dead transitions. [2022-12-12 12:55:53,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1193 places, 4103 transitions, 56298 flow [2022-12-12 12:55:53,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-12 12:55:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-12-12 12:55:53,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 9628 transitions. [2022-12-12 12:55:54,000 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5510531135531136 [2022-12-12 12:55:54,000 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 888 predicate places. [2022-12-12 12:55:54,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1193 places, 4103 transitions, 56298 flow [2022-12-12 12:55:54,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1178 places, 4103 transitions, 49962 flow, removed 3045 selfloop flow, removed 15 redundant places. [2022-12-12 12:55:54,128 INFO L495 AbstractCegarLoop]: Abstraction has has 1178 places, 4103 transitions, 49962 flow [2022-12-12 12:55:54,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:54,129 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:55:54,129 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] [2022-12-12 12:55:54,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-12 12:55:54,129 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:55:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:55:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash -418923866, now seen corresponding path program 40 times [2022-12-12 12:55:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:55:54,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068738352] [2022-12-12 12:55:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:55:54,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:55:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:55:54,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:55:54,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:55:54,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068738352] [2022-12-12 12:55:54,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068738352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:55:54,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:55:54,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:55:54,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903195687] [2022-12-12 12:55:54,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:55:54,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:55:54,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:55:54,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:55:54,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:55:54,594 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:55:54,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1178 places, 4103 transitions, 49962 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:55:54,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:55:54,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:55:54,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:56:00,721 INFO L130 PetriNetUnfolder]: 9491/26777 cut-off events. [2022-12-12 12:56:00,721 INFO L131 PetriNetUnfolder]: For 123644/125287 co-relation queries the response was YES. [2022-12-12 12:56:00,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128131 conditions, 26777 events. 9491/26777 cut-off events. For 123644/125287 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 279418 event pairs, 1351 based on Foata normal form. 229/25295 useless extension candidates. Maximal degree in co-relation 115861. Up to 11102 conditions per place. [2022-12-12 12:56:00,857 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2281 selfloop transitions, 633 changer transitions 912/4124 dead transitions. [2022-12-12 12:56:00,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1224 places, 4124 transitions, 57856 flow [2022-12-12 12:56:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 12:56:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 12:56:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9943 transitions. [2022-12-12 12:56:00,862 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6296225937183384 [2022-12-12 12:56:00,862 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 919 predicate places. [2022-12-12 12:56:00,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1224 places, 4124 transitions, 57856 flow [2022-12-12 12:56:00,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1201 places, 4124 transitions, 52357 flow, removed 2256 selfloop flow, removed 23 redundant places. [2022-12-12 12:56:00,987 INFO L495 AbstractCegarLoop]: Abstraction has has 1201 places, 4124 transitions, 52357 flow [2022-12-12 12:56:00,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:00,987 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:56:00,988 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] [2022-12-12 12:56:00,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-12 12:56:00,988 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:56:00,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:56:00,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1496424230, now seen corresponding path program 41 times [2022-12-12 12:56:00,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:56:00,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769458355] [2022-12-12 12:56:00,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:56:00,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:56:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:56:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:56:01,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:56:01,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769458355] [2022-12-12 12:56:01,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769458355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:56:01,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:56:01,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:56:01,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257677804] [2022-12-12 12:56:01,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:56:01,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:56:01,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:56:01,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:56:01,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:56:01,360 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:56:01,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1201 places, 4124 transitions, 52357 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:01,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:56:01,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:56:01,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:56:09,479 INFO L130 PetriNetUnfolder]: 11774/33456 cut-off events. [2022-12-12 12:56:09,479 INFO L131 PetriNetUnfolder]: For 152229/154191 co-relation queries the response was YES. [2022-12-12 12:56:09,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166433 conditions, 33456 events. 11774/33456 cut-off events. For 152229/154191 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 360126 event pairs, 1850 based on Foata normal form. 190/31313 useless extension candidates. Maximal degree in co-relation 118642. Up to 15339 conditions per place. [2022-12-12 12:56:09,678 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2370 selfloop transitions, 608 changer transitions 961/4237 dead transitions. [2022-12-12 12:56:09,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1234 places, 4237 transitions, 61670 flow [2022-12-12 12:56:09,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-12 12:56:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-12-12 12:56:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 7426 transitions. [2022-12-12 12:56:09,682 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6500350140056023 [2022-12-12 12:56:09,683 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 929 predicate places. [2022-12-12 12:56:09,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1234 places, 4237 transitions, 61670 flow [2022-12-12 12:56:09,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1215 places, 4237 transitions, 52927 flow, removed 3876 selfloop flow, removed 19 redundant places. [2022-12-12 12:56:09,903 INFO L495 AbstractCegarLoop]: Abstraction has has 1215 places, 4237 transitions, 52927 flow [2022-12-12 12:56:09,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:09,903 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:56:09,903 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] [2022-12-12 12:56:09,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-12 12:56:09,904 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:56:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:56:09,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1121690222, now seen corresponding path program 42 times [2022-12-12 12:56:09,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:56:09,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638014584] [2022-12-12 12:56:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:56:09,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:56:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:56:10,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:56:10,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:56:10,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638014584] [2022-12-12 12:56:10,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638014584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:56:10,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:56:10,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-12 12:56:10,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648910184] [2022-12-12 12:56:10,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:56:10,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-12 12:56:10,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:56:10,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-12 12:56:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2022-12-12 12:56:10,425 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 336 [2022-12-12 12:56:10,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1215 places, 4237 transitions, 52927 flow. Second operand has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:10,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:56:10,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 336 [2022-12-12 12:56:10,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:56:19,647 INFO L130 PetriNetUnfolder]: 11807/33630 cut-off events. [2022-12-12 12:56:19,647 INFO L131 PetriNetUnfolder]: For 134003/136060 co-relation queries the response was YES. [2022-12-12 12:56:19,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150613 conditions, 33630 events. 11807/33630 cut-off events. For 134003/136060 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 363173 event pairs, 1844 based on Foata normal form. 236/31536 useless extension candidates. Maximal degree in co-relation 102963. Up to 16067 conditions per place. [2022-12-12 12:56:19,828 INFO L137 encePairwiseOnDemand]: 291/336 looper letters, 2703 selfloop transitions, 419 changer transitions 1010/4293 dead transitions. [2022-12-12 12:56:19,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1263 places, 4293 transitions, 61978 flow [2022-12-12 12:56:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 12:56:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 12:56:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 9079 transitions. [2022-12-12 12:56:19,834 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5514455782312925 [2022-12-12 12:56:19,834 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 958 predicate places. [2022-12-12 12:56:19,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1263 places, 4293 transitions, 61978 flow [2022-12-12 12:56:19,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1230 places, 4293 transitions, 55132 flow, removed 2911 selfloop flow, removed 33 redundant places. [2022-12-12 12:56:19,987 INFO L495 AbstractCegarLoop]: Abstraction has has 1230 places, 4293 transitions, 55132 flow [2022-12-12 12:56:19,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:19,988 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:56:19,995 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] [2022-12-12 12:56:19,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-12 12:56:19,995 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:56:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:56:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1362728812, now seen corresponding path program 43 times [2022-12-12 12:56:19,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:56:19,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402318311] [2022-12-12 12:56:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:56:19,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:56:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:56:20,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:56:20,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:56:20,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402318311] [2022-12-12 12:56:20,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402318311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:56:20,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:56:20,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:56:20,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500296067] [2022-12-12 12:56:20,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:56:20,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:56:20,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:56:20,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:56:20,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:56:20,313 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:56:20,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1230 places, 4293 transitions, 55132 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:20,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:56:20,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:56:20,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:56:28,670 INFO L130 PetriNetUnfolder]: 11901/34046 cut-off events. [2022-12-12 12:56:28,671 INFO L131 PetriNetUnfolder]: For 155901/157871 co-relation queries the response was YES. [2022-12-12 12:56:28,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163735 conditions, 34046 events. 11901/34046 cut-off events. For 155901/157871 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 369922 event pairs, 1854 based on Foata normal form. 240/31941 useless extension candidates. Maximal degree in co-relation 111890. Up to 15491 conditions per place. [2022-12-12 12:56:28,877 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2407 selfloop transitions, 632 changer transitions 1074/4417 dead transitions. [2022-12-12 12:56:28,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1278 places, 4417 transitions, 65428 flow [2022-12-12 12:56:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 12:56:28,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 12:56:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10390 transitions. [2022-12-12 12:56:28,886 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6310738581146744 [2022-12-12 12:56:28,886 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 973 predicate places. [2022-12-12 12:56:28,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1278 places, 4417 transitions, 65428 flow [2022-12-12 12:56:29,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1258 places, 4417 transitions, 58906 flow, removed 2829 selfloop flow, removed 20 redundant places. [2022-12-12 12:56:29,081 INFO L495 AbstractCegarLoop]: Abstraction has has 1258 places, 4417 transitions, 58906 flow [2022-12-12 12:56:29,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:29,081 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:56:29,081 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] [2022-12-12 12:56:29,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-12-12 12:56:29,082 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:56:29,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:56:29,082 INFO L85 PathProgramCache]: Analyzing trace with hash -225265556, now seen corresponding path program 44 times [2022-12-12 12:56:29,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:56:29,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652127459] [2022-12-12 12:56:29,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:56:29,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:56:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:56:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:56:29,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:56:29,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652127459] [2022-12-12 12:56:29,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652127459] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:56:29,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:56:29,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:56:29,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273663093] [2022-12-12 12:56:29,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:56:29,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:56:29,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:56:29,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:56:29,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:56:29,426 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:56:29,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1258 places, 4417 transitions, 58906 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:29,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:56:29,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:56:29,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:56:38,349 INFO L130 PetriNetUnfolder]: 12060/34515 cut-off events. [2022-12-12 12:56:38,349 INFO L131 PetriNetUnfolder]: For 179250/181462 co-relation queries the response was YES. [2022-12-12 12:56:38,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174722 conditions, 34515 events. 12060/34515 cut-off events. For 179250/181462 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 376404 event pairs, 1855 based on Foata normal form. 215/32372 useless extension candidates. Maximal degree in co-relation 157229. Up to 15491 conditions per place. [2022-12-12 12:56:38,738 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2535 selfloop transitions, 639 changer transitions 1100/4578 dead transitions. [2022-12-12 12:56:38,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1312 places, 4578 transitions, 70379 flow [2022-12-12 12:56:38,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-12 12:56:38,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-12-12 12:56:38,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 11626 transitions. [2022-12-12 12:56:38,743 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6291125541125541 [2022-12-12 12:56:38,743 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1007 predicate places. [2022-12-12 12:56:38,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1312 places, 4578 transitions, 70379 flow [2022-12-12 12:56:38,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1298 places, 4578 transitions, 60320 flow, removed 4676 selfloop flow, removed 14 redundant places. [2022-12-12 12:56:38,944 INFO L495 AbstractCegarLoop]: Abstraction has has 1298 places, 4578 transitions, 60320 flow [2022-12-12 12:56:38,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:38,944 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:56:38,945 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] [2022-12-12 12:56:38,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-12-12 12:56:38,945 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:56:38,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:56:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1002169494, now seen corresponding path program 45 times [2022-12-12 12:56:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:56:38,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866040686] [2022-12-12 12:56:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:56:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:56:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:56:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:56:39,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:56:39,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866040686] [2022-12-12 12:56:39,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866040686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:56:39,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:56:39,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:56:39,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446874025] [2022-12-12 12:56:39,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:56:39,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:56:39,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:56:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:56:39,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:56:39,287 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:56:39,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1298 places, 4578 transitions, 60320 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:39,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:56:39,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:56:39,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:56:47,859 INFO L130 PetriNetUnfolder]: 12067/34566 cut-off events. [2022-12-12 12:56:47,860 INFO L131 PetriNetUnfolder]: For 183852/185938 co-relation queries the response was YES. [2022-12-12 12:56:47,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161509 conditions, 34566 events. 12067/34566 cut-off events. For 183852/185938 co-relation queries the response was YES. Maximal size of possible extension queue 622. Compared 377471 event pairs, 1820 based on Foata normal form. 240/32447 useless extension candidates. Maximal degree in co-relation 144267. Up to 15203 conditions per place. [2022-12-12 12:56:48,070 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2529 selfloop transitions, 648 changer transitions 1118/4599 dead transitions. [2022-12-12 12:56:48,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1347 places, 4599 transitions, 69258 flow [2022-12-12 12:56:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 12:56:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 12:56:48,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10590 transitions. [2022-12-12 12:56:48,075 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6303571428571428 [2022-12-12 12:56:48,075 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1042 predicate places. [2022-12-12 12:56:48,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1347 places, 4599 transitions, 69258 flow [2022-12-12 12:56:48,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1324 places, 4599 transitions, 60676 flow, removed 3674 selfloop flow, removed 23 redundant places. [2022-12-12 12:56:48,312 INFO L495 AbstractCegarLoop]: Abstraction has has 1324 places, 4599 transitions, 60676 flow [2022-12-12 12:56:48,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:48,312 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:56:48,312 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] [2022-12-12 12:56:48,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-12-12 12:56:48,312 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:56:48,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:56:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1975984354, now seen corresponding path program 46 times [2022-12-12 12:56:48,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:56:48,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005003877] [2022-12-12 12:56:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:56:48,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:56:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:56:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:56:48,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:56:48,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005003877] [2022-12-12 12:56:48,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005003877] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:56:48,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:56:48,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:56:48,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166878115] [2022-12-12 12:56:48,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:56:48,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:56:48,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:56:48,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:56:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:56:48,629 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:56:48,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1324 places, 4599 transitions, 60676 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:48,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:56:48,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:56:48,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:56:57,473 INFO L130 PetriNetUnfolder]: 12198/34929 cut-off events. [2022-12-12 12:56:57,474 INFO L131 PetriNetUnfolder]: For 188175/190297 co-relation queries the response was YES. [2022-12-12 12:56:57,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165124 conditions, 34929 events. 12198/34929 cut-off events. For 188175/190297 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 382363 event pairs, 1869 based on Foata normal form. 217/32784 useless extension candidates. Maximal degree in co-relation 146886. Up to 15319 conditions per place. [2022-12-12 12:56:57,659 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2586 selfloop transitions, 685 changer transitions 1144/4719 dead transitions. [2022-12-12 12:56:57,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1378 places, 4719 transitions, 72159 flow [2022-12-12 12:56:57,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-12 12:56:57,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-12-12 12:56:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 11604 transitions. [2022-12-12 12:56:57,664 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6279220779220779 [2022-12-12 12:56:57,664 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1073 predicate places. [2022-12-12 12:56:57,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1378 places, 4719 transitions, 72159 flow [2022-12-12 12:56:57,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1360 places, 4719 transitions, 62549 flow, removed 4314 selfloop flow, removed 18 redundant places. [2022-12-12 12:56:57,930 INFO L495 AbstractCegarLoop]: Abstraction has has 1360 places, 4719 transitions, 62549 flow [2022-12-12 12:56:57,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:57,930 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:56:57,930 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] [2022-12-12 12:56:57,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-12-12 12:56:57,930 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:56:57,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:56:57,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2011575362, now seen corresponding path program 47 times [2022-12-12 12:56:57,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:56:57,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495449529] [2022-12-12 12:56:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:56:57,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:56:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:56:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:56:58,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:56:58,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495449529] [2022-12-12 12:56:58,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495449529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:56:58,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:56:58,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:56:58,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697406453] [2022-12-12 12:56:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:56:58,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:56:58,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:56:58,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:56:58,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:56:58,328 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:56:58,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1360 places, 4719 transitions, 62549 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:56:58,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:56:58,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:56:58,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:57:07,218 INFO L130 PetriNetUnfolder]: 12256/35111 cut-off events. [2022-12-12 12:57:07,218 INFO L131 PetriNetUnfolder]: For 191180/193249 co-relation queries the response was YES. [2022-12-12 12:57:07,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165600 conditions, 35111 events. 12256/35111 cut-off events. For 191180/193249 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 384529 event pairs, 1877 based on Foata normal form. 211/32952 useless extension candidates. Maximal degree in co-relation 105893. Up to 15319 conditions per place. [2022-12-12 12:57:07,415 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2608 selfloop transitions, 706 changer transitions 1162/4780 dead transitions. [2022-12-12 12:57:07,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1411 places, 4780 transitions, 72416 flow [2022-12-12 12:57:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-12 12:57:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-12-12 12:57:07,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 10993 transitions. [2022-12-12 12:57:07,420 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6291781135531136 [2022-12-12 12:57:07,420 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1106 predicate places. [2022-12-12 12:57:07,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1411 places, 4780 transitions, 72416 flow [2022-12-12 12:57:07,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1387 places, 4780 transitions, 63666 flow, removed 3620 selfloop flow, removed 24 redundant places. [2022-12-12 12:57:07,657 INFO L495 AbstractCegarLoop]: Abstraction has has 1387 places, 4780 transitions, 63666 flow [2022-12-12 12:57:07,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:07,657 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:57:07,657 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] [2022-12-12 12:57:07,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-12-12 12:57:07,657 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:57:07,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:57:07,658 INFO L85 PathProgramCache]: Analyzing trace with hash 318428818, now seen corresponding path program 48 times [2022-12-12 12:57:07,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:57:07,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325542048] [2022-12-12 12:57:07,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:57:07,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:57:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:57:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:57:07,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:57:07,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325542048] [2022-12-12 12:57:07,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325542048] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:57:07,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:57:07,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:57:07,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123247416] [2022-12-12 12:57:07,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:57:07,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:57:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:57:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:57:07,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:57:07,964 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:57:07,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1387 places, 4780 transitions, 63666 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:07,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:57:07,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:57:07,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:57:16,595 INFO L130 PetriNetUnfolder]: 12255/35131 cut-off events. [2022-12-12 12:57:16,595 INFO L131 PetriNetUnfolder]: For 195070/197166 co-relation queries the response was YES. [2022-12-12 12:57:16,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165429 conditions, 35131 events. 12255/35131 cut-off events. For 195070/197166 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 385272 event pairs, 1849 based on Foata normal form. 244/33004 useless extension candidates. Maximal degree in co-relation 147161. Up to 15319 conditions per place. [2022-12-12 12:57:16,796 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2602 selfloop transitions, 699 changer transitions 1182/4787 dead transitions. [2022-12-12 12:57:16,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1434 places, 4787 transitions, 72788 flow [2022-12-12 12:57:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:57:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:57:16,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10201 transitions. [2022-12-12 12:57:16,801 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6325024801587301 [2022-12-12 12:57:16,801 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1129 predicate places. [2022-12-12 12:57:16,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1434 places, 4787 transitions, 72788 flow [2022-12-12 12:57:17,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1401 places, 4787 transitions, 64220 flow, removed 3558 selfloop flow, removed 33 redundant places. [2022-12-12 12:57:17,048 INFO L495 AbstractCegarLoop]: Abstraction has has 1401 places, 4787 transitions, 64220 flow [2022-12-12 12:57:17,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:17,048 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:57:17,048 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] [2022-12-12 12:57:17,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-12-12 12:57:17,049 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:57:17,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:57:17,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1184154016, now seen corresponding path program 49 times [2022-12-12 12:57:17,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:57:17,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640069860] [2022-12-12 12:57:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:57:17,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:57:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:57:17,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:57:17,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:57:17,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640069860] [2022-12-12 12:57:17,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640069860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:57:17,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:57:17,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:57:17,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936910805] [2022-12-12 12:57:17,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:57:17,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:57:17,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:57:17,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:57:17,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:57:17,361 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:57:17,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1401 places, 4787 transitions, 64220 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:17,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:57:17,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:57:17,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:57:26,117 INFO L130 PetriNetUnfolder]: 12272/35220 cut-off events. [2022-12-12 12:57:26,118 INFO L131 PetriNetUnfolder]: For 199977/202081 co-relation queries the response was YES. [2022-12-12 12:57:26,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166392 conditions, 35220 events. 12272/35220 cut-off events. For 199977/202081 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 386666 event pairs, 1851 based on Foata normal form. 254/33102 useless extension candidates. Maximal degree in co-relation 147595. Up to 15319 conditions per place. [2022-12-12 12:57:26,448 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2602 selfloop transitions, 699 changer transitions 1204/4809 dead transitions. [2022-12-12 12:57:26,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1454 places, 4809 transitions, 73655 flow [2022-12-12 12:57:26,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-12 12:57:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-12-12 12:57:26,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 11408 transitions. [2022-12-12 12:57:26,453 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6287477954144621 [2022-12-12 12:57:26,453 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1149 predicate places. [2022-12-12 12:57:26,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1454 places, 4809 transitions, 73655 flow [2022-12-12 12:57:26,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1420 places, 4809 transitions, 64584 flow, removed 3758 selfloop flow, removed 34 redundant places. [2022-12-12 12:57:26,710 INFO L495 AbstractCegarLoop]: Abstraction has has 1420 places, 4809 transitions, 64584 flow [2022-12-12 12:57:26,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:26,710 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:57:26,710 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] [2022-12-12 12:57:26,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-12-12 12:57:26,711 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:57:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:57:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash 19392518, now seen corresponding path program 50 times [2022-12-12 12:57:26,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:57:26,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779838920] [2022-12-12 12:57:26,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:57:26,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:57:26,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:57:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:57:27,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:57:27,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779838920] [2022-12-12 12:57:27,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779838920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:57:27,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:57:27,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:57:27,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610731970] [2022-12-12 12:57:27,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:57:27,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:57:27,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:57:27,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:57:27,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:57:27,108 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:57:27,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1420 places, 4809 transitions, 64584 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:27,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:57:27,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:57:27,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:57:35,791 INFO L130 PetriNetUnfolder]: 12271/35233 cut-off events. [2022-12-12 12:57:35,792 INFO L131 PetriNetUnfolder]: For 201530/203615 co-relation queries the response was YES. [2022-12-12 12:57:35,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166378 conditions, 35233 events. 12271/35233 cut-off events. For 201530/203615 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 387372 event pairs, 1850 based on Foata normal form. 254/33115 useless extension candidates. Maximal degree in co-relation 147535. Up to 15319 conditions per place. [2022-12-12 12:57:36,008 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2623 selfloop transitions, 665 changer transitions 1224/4816 dead transitions. [2022-12-12 12:57:36,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1465 places, 4816 transitions, 73778 flow [2022-12-12 12:57:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-12 12:57:36,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-12-12 12:57:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 9798 transitions. [2022-12-12 12:57:36,017 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6339285714285714 [2022-12-12 12:57:36,017 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1160 predicate places. [2022-12-12 12:57:36,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1465 places, 4816 transitions, 73778 flow [2022-12-12 12:57:36,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1436 places, 4816 transitions, 65690 flow, removed 3487 selfloop flow, removed 29 redundant places. [2022-12-12 12:57:36,283 INFO L495 AbstractCegarLoop]: Abstraction has has 1436 places, 4816 transitions, 65690 flow [2022-12-12 12:57:36,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:36,284 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:57:36,284 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] [2022-12-12 12:57:36,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-12-12 12:57:36,284 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:57:36,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:57:36,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1806931642, now seen corresponding path program 51 times [2022-12-12 12:57:36,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:57:36,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261434206] [2022-12-12 12:57:36,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:57:36,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:57:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:57:36,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:57:36,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:57:36,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261434206] [2022-12-12 12:57:36,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261434206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:57:36,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:57:36,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:57:36,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687896193] [2022-12-12 12:57:36,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:57:36,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:57:36,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:57:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:57:36,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:57:36,693 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:57:36,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1436 places, 4816 transitions, 65690 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:36,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:57:36,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:57:36,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:57:45,414 INFO L130 PetriNetUnfolder]: 12305/35354 cut-off events. [2022-12-12 12:57:45,414 INFO L131 PetriNetUnfolder]: For 209933/212112 co-relation queries the response was YES. [2022-12-12 12:57:45,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169049 conditions, 35354 events. 12305/35354 cut-off events. For 209933/212112 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 389268 event pairs, 1875 based on Foata normal form. 240/33228 useless extension candidates. Maximal degree in co-relation 149179. Up to 15319 conditions per place. [2022-12-12 12:57:45,639 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2614 selfloop transitions, 663 changer transitions 1278/4859 dead transitions. [2022-12-12 12:57:45,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1483 places, 4859 transitions, 75690 flow [2022-12-12 12:57:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:57:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:57:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10223 transitions. [2022-12-12 12:57:45,644 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6338665674603174 [2022-12-12 12:57:45,645 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1178 predicate places. [2022-12-12 12:57:45,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1483 places, 4859 transitions, 75690 flow [2022-12-12 12:57:45,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1454 places, 4859 transitions, 66605 flow, removed 3800 selfloop flow, removed 29 redundant places. [2022-12-12 12:57:45,881 INFO L495 AbstractCegarLoop]: Abstraction has has 1454 places, 4859 transitions, 66605 flow [2022-12-12 12:57:45,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:45,882 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:57:45,882 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] [2022-12-12 12:57:45,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-12-12 12:57:45,882 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:57:45,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:57:45,883 INFO L85 PathProgramCache]: Analyzing trace with hash 251581784, now seen corresponding path program 52 times [2022-12-12 12:57:45,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:57:45,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17243872] [2022-12-12 12:57:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:57:45,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:57:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:57:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:57:46,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:57:46,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17243872] [2022-12-12 12:57:46,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17243872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:57:46,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:57:46,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:57:46,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790132351] [2022-12-12 12:57:46,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:57:46,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:57:46,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:57:46,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:57:46,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:57:46,356 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:57:46,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1454 places, 4859 transitions, 66605 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:46,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:57:46,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:57:46,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:57:55,366 INFO L130 PetriNetUnfolder]: 12305/35386 cut-off events. [2022-12-12 12:57:55,366 INFO L131 PetriNetUnfolder]: For 212768/214770 co-relation queries the response was YES. [2022-12-12 12:57:55,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168968 conditions, 35386 events. 12305/35386 cut-off events. For 212768/214770 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 389397 event pairs, 1875 based on Foata normal form. 227/33238 useless extension candidates. Maximal degree in co-relation 106164. Up to 15319 conditions per place. [2022-12-12 12:57:55,556 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2610 selfloop transitions, 648 changer transitions 1296/4858 dead transitions. [2022-12-12 12:57:55,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1503 places, 4858 transitions, 75689 flow [2022-12-12 12:57:55,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 12:57:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 12:57:55,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10601 transitions. [2022-12-12 12:57:55,561 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6310119047619047 [2022-12-12 12:57:55,561 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1198 predicate places. [2022-12-12 12:57:55,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1503 places, 4858 transitions, 75689 flow [2022-12-12 12:57:55,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1478 places, 4858 transitions, 66360 flow, removed 3933 selfloop flow, removed 25 redundant places. [2022-12-12 12:57:55,798 INFO L495 AbstractCegarLoop]: Abstraction has has 1478 places, 4858 transitions, 66360 flow [2022-12-12 12:57:55,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:55,799 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:57:55,799 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] [2022-12-12 12:57:55,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-12-12 12:57:55,799 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:57:55,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:57:55,800 INFO L85 PathProgramCache]: Analyzing trace with hash 36748266, now seen corresponding path program 53 times [2022-12-12 12:57:55,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:57:55,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223248640] [2022-12-12 12:57:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:57:55,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:57:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:57:56,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:57:56,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:57:56,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223248640] [2022-12-12 12:57:56,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223248640] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:57:56,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:57:56,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:57:56,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412998003] [2022-12-12 12:57:56,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:57:56,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:57:56,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:57:56,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:57:56,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:57:56,174 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:57:56,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1478 places, 4858 transitions, 66360 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:57:56,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:57:56,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:57:56,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:58:05,217 INFO L130 PetriNetUnfolder]: 12318/35426 cut-off events. [2022-12-12 12:58:05,218 INFO L131 PetriNetUnfolder]: For 212895/215003 co-relation queries the response was YES. [2022-12-12 12:58:05,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169760 conditions, 35426 events. 12318/35426 cut-off events. For 212895/215003 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 390403 event pairs, 1846 based on Foata normal form. 249/33298 useless extension candidates. Maximal degree in co-relation 149856. Up to 15319 conditions per place. [2022-12-12 12:58:05,426 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2492 selfloop transitions, 780 changer transitions 1313/4889 dead transitions. [2022-12-12 12:58:05,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1527 places, 4889 transitions, 76149 flow [2022-12-12 12:58:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 12:58:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 12:58:05,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10587 transitions. [2022-12-12 12:58:05,433 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6301785714285715 [2022-12-12 12:58:05,433 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1222 predicate places. [2022-12-12 12:58:05,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1527 places, 4889 transitions, 76149 flow [2022-12-12 12:58:05,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1505 places, 4889 transitions, 67316 flow, removed 3792 selfloop flow, removed 22 redundant places. [2022-12-12 12:58:05,717 INFO L495 AbstractCegarLoop]: Abstraction has has 1505 places, 4889 transitions, 67316 flow [2022-12-12 12:58:05,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:05,718 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:58:05,718 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] [2022-12-12 12:58:05,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-12-12 12:58:05,718 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:58:05,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:58:05,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1845761796, now seen corresponding path program 54 times [2022-12-12 12:58:05,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:58:05,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113271988] [2022-12-12 12:58:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:58:05,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:58:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:58:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:58:06,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:58:06,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113271988] [2022-12-12 12:58:06,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113271988] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:58:06,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:58:06,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:58:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134287962] [2022-12-12 12:58:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:58:06,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:58:06,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:58:06,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:58:06,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:58:06,025 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:58:06,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1505 places, 4889 transitions, 67316 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:06,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:58:06,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:58:06,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:58:14,916 INFO L130 PetriNetUnfolder]: 12325/35487 cut-off events. [2022-12-12 12:58:14,916 INFO L131 PetriNetUnfolder]: For 219608/221674 co-relation queries the response was YES. [2022-12-12 12:58:15,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170559 conditions, 35487 events. 12325/35487 cut-off events. For 219608/221674 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 390921 event pairs, 1877 based on Foata normal form. 219/33330 useless extension candidates. Maximal degree in co-relation 150407. Up to 15319 conditions per place. [2022-12-12 12:58:15,139 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2494 selfloop transitions, 781 changer transitions 1331/4910 dead transitions. [2022-12-12 12:58:15,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1556 places, 4910 transitions, 76999 flow [2022-12-12 12:58:15,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-12-12 12:58:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-12-12 12:58:15,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 10983 transitions. [2022-12-12 12:58:15,144 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6286057692307693 [2022-12-12 12:58:15,144 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1251 predicate places. [2022-12-12 12:58:15,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1556 places, 4910 transitions, 76999 flow [2022-12-12 12:58:15,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1527 places, 4910 transitions, 68022 flow, removed 3645 selfloop flow, removed 29 redundant places. [2022-12-12 12:58:15,444 INFO L495 AbstractCegarLoop]: Abstraction has has 1527 places, 4910 transitions, 68022 flow [2022-12-12 12:58:15,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:15,445 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:58:15,445 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] [2022-12-12 12:58:15,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-12-12 12:58:15,445 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:58:15,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:58:15,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1452124246, now seen corresponding path program 55 times [2022-12-12 12:58:15,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:58:15,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047325202] [2022-12-12 12:58:15,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:58:15,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:58:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:58:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:58:15,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:58:15,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047325202] [2022-12-12 12:58:15,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047325202] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:58:15,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:58:15,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:58:15,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688088547] [2022-12-12 12:58:15,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:58:15,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:58:15,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:58:15,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:58:15,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:58:15,878 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:58:15,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1527 places, 4910 transitions, 68022 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:15,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:58:15,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:58:15,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:58:24,393 INFO L130 PetriNetUnfolder]: 12324/35488 cut-off events. [2022-12-12 12:58:24,394 INFO L131 PetriNetUnfolder]: For 225011/227069 co-relation queries the response was YES. [2022-12-12 12:58:24,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171003 conditions, 35488 events. 12324/35488 cut-off events. For 225011/227069 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 391278 event pairs, 1874 based on Foata normal form. 215/33329 useless extension candidates. Maximal degree in co-relation 150643. Up to 15319 conditions per place. [2022-12-12 12:58:24,707 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2490 selfloop transitions, 775 changer transitions 1351/4920 dead transitions. [2022-12-12 12:58:24,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1574 places, 4920 transitions, 77510 flow [2022-12-12 12:58:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:58:24,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:58:24,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10191 transitions. [2022-12-12 12:58:24,712 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6318824404761905 [2022-12-12 12:58:24,713 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1269 predicate places. [2022-12-12 12:58:24,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1574 places, 4920 transitions, 77510 flow [2022-12-12 12:58:24,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1540 places, 4920 transitions, 68743 flow, removed 3573 selfloop flow, removed 34 redundant places. [2022-12-12 12:58:24,960 INFO L495 AbstractCegarLoop]: Abstraction has has 1540 places, 4920 transitions, 68743 flow [2022-12-12 12:58:24,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:24,960 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:58:24,960 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] [2022-12-12 12:58:24,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-12-12 12:58:24,960 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:58:24,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:58:24,961 INFO L85 PathProgramCache]: Analyzing trace with hash -7783896, now seen corresponding path program 56 times [2022-12-12 12:58:24,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:58:24,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718280057] [2022-12-12 12:58:24,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:58:24,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:58:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:58:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:58:25,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:58:25,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718280057] [2022-12-12 12:58:25,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718280057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:58:25,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:58:25,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:58:25,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048202494] [2022-12-12 12:58:25,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:58:25,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:58:25,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:58:25,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:58:25,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:58:25,433 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:58:25,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1540 places, 4920 transitions, 68743 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:25,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:58:25,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:58:25,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:58:34,426 INFO L130 PetriNetUnfolder]: 12327/35535 cut-off events. [2022-12-12 12:58:34,427 INFO L131 PetriNetUnfolder]: For 231389/233521 co-relation queries the response was YES. [2022-12-12 12:58:34,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171785 conditions, 35535 events. 12327/35535 cut-off events. For 231389/233521 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 392123 event pairs, 1875 based on Foata normal form. 228/33386 useless extension candidates. Maximal degree in co-relation 151030. Up to 15319 conditions per place. [2022-12-12 12:58:34,612 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2486 selfloop transitions, 771 changer transitions 1372/4933 dead transitions. [2022-12-12 12:58:34,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1589 places, 4933 transitions, 78319 flow [2022-12-12 12:58:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 12:58:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 12:58:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10586 transitions. [2022-12-12 12:58:34,617 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6301190476190476 [2022-12-12 12:58:34,617 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1284 predicate places. [2022-12-12 12:58:34,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1589 places, 4933 transitions, 78319 flow [2022-12-12 12:58:34,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1557 places, 4933 transitions, 69560 flow, removed 3563 selfloop flow, removed 32 redundant places. [2022-12-12 12:58:34,868 INFO L495 AbstractCegarLoop]: Abstraction has has 1557 places, 4933 transitions, 69560 flow [2022-12-12 12:58:34,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:34,869 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:58:34,869 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] [2022-12-12 12:58:34,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-12-12 12:58:34,869 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:58:34,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:58:34,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1308998398, now seen corresponding path program 57 times [2022-12-12 12:58:34,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:58:34,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073013764] [2022-12-12 12:58:34,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:58:34,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:58:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:58:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:58:35,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:58:35,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073013764] [2022-12-12 12:58:35,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073013764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:58:35,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:58:35,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:58:35,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226099244] [2022-12-12 12:58:35,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:58:35,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:58:35,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:58:35,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:58:35,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:58:35,174 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:58:35,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1557 places, 4933 transitions, 69560 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:35,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:58:35,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:58:35,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:58:44,358 INFO L130 PetriNetUnfolder]: 12326/35529 cut-off events. [2022-12-12 12:58:44,358 INFO L131 PetriNetUnfolder]: For 236338/238419 co-relation queries the response was YES. [2022-12-12 12:58:44,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172423 conditions, 35529 events. 12326/35529 cut-off events. For 236338/238419 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 392484 event pairs, 1848 based on Foata normal form. 240/33389 useless extension candidates. Maximal degree in co-relation 151425. Up to 15319 conditions per place. [2022-12-12 12:58:44,566 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2478 selfloop transitions, 766 changer transitions 1391/4939 dead transitions. [2022-12-12 12:58:44,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1609 places, 4939 transitions, 79014 flow [2022-12-12 12:58:44,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 12:58:44,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 12:58:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 11189 transitions. [2022-12-12 12:58:44,571 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6283131176999102 [2022-12-12 12:58:44,572 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1304 predicate places. [2022-12-12 12:58:44,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1609 places, 4939 transitions, 79014 flow [2022-12-12 12:58:44,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1577 places, 4939 transitions, 69680 flow, removed 3729 selfloop flow, removed 32 redundant places. [2022-12-12 12:58:44,850 INFO L495 AbstractCegarLoop]: Abstraction has has 1577 places, 4939 transitions, 69680 flow [2022-12-12 12:58:44,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:44,851 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:58:44,851 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] [2022-12-12 12:58:44,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-12-12 12:58:44,851 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:58:44,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:58:44,851 INFO L85 PathProgramCache]: Analyzing trace with hash -232383704, now seen corresponding path program 58 times [2022-12-12 12:58:44,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:58:44,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960200281] [2022-12-12 12:58:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:58:44,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:58:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:58:45,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:58:45,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:58:45,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960200281] [2022-12-12 12:58:45,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960200281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:58:45,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:58:45,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:58:45,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843560208] [2022-12-12 12:58:45,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:58:45,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:58:45,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:58:45,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:58:45,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:58:45,187 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:58:45,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1577 places, 4939 transitions, 69680 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:45,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:58:45,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:58:45,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:58:54,126 INFO L130 PetriNetUnfolder]: 12326/35540 cut-off events. [2022-12-12 12:58:54,126 INFO L131 PetriNetUnfolder]: For 240543/242602 co-relation queries the response was YES. [2022-12-12 12:58:54,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172276 conditions, 35540 events. 12326/35540 cut-off events. For 240543/242602 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 391839 event pairs, 1874 based on Foata normal form. 223/33390 useless extension candidates. Maximal degree in co-relation 106769. Up to 15319 conditions per place. [2022-12-12 12:58:54,339 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2460 selfloop transitions, 752 changer transitions 1422/4938 dead transitions. [2022-12-12 12:58:54,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1624 places, 4938 transitions, 78928 flow [2022-12-12 12:58:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-12 12:58:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-12-12 12:58:54,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 10193 transitions. [2022-12-12 12:58:54,344 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6320064484126984 [2022-12-12 12:58:54,344 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1319 predicate places. [2022-12-12 12:58:54,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1624 places, 4938 transitions, 78928 flow [2022-12-12 12:58:54,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1590 places, 4938 transitions, 69936 flow, removed 3659 selfloop flow, removed 34 redundant places. [2022-12-12 12:58:54,620 INFO L495 AbstractCegarLoop]: Abstraction has has 1590 places, 4938 transitions, 69936 flow [2022-12-12 12:58:54,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:54,620 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:58:54,621 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] [2022-12-12 12:58:54,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-12-12 12:58:54,621 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:58:54,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:58:54,621 INFO L85 PathProgramCache]: Analyzing trace with hash -390368954, now seen corresponding path program 59 times [2022-12-12 12:58:54,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:58:54,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23343157] [2022-12-12 12:58:54,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:58:54,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:58:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:58:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:58:54,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:58:54,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23343157] [2022-12-12 12:58:54,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23343157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:58:54,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:58:54,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:58:54,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840526740] [2022-12-12 12:58:54,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:58:54,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:58:54,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:58:54,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:58:54,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:58:54,900 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:58:54,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1590 places, 4938 transitions, 69936 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:58:54,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:58:54,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:58:54,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:59:04,020 INFO L130 PetriNetUnfolder]: 12496/36143 cut-off events. [2022-12-12 12:59:04,020 INFO L131 PetriNetUnfolder]: For 245830/248003 co-relation queries the response was YES. [2022-12-12 12:59:04,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175847 conditions, 36143 events. 12496/36143 cut-off events. For 245830/248003 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 400524 event pairs, 1873 based on Foata normal form. 303/34036 useless extension candidates. Maximal degree in co-relation 106736. Up to 15325 conditions per place. [2022-12-12 12:59:04,233 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2825 selfloop transitions, 524 changer transitions 1457/5110 dead transitions. [2022-12-12 12:59:04,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1631 places, 5110 transitions, 82242 flow [2022-12-12 12:59:04,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 12:59:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 12:59:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 8973 transitions. [2022-12-12 12:59:04,237 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6358418367346939 [2022-12-12 12:59:04,240 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1326 predicate places. [2022-12-12 12:59:04,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1631 places, 5110 transitions, 82242 flow [2022-12-12 12:59:04,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 5110 transitions, 73139 flow, removed 4043 selfloop flow, removed 15 redundant places. [2022-12-12 12:59:04,520 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 5110 transitions, 73139 flow [2022-12-12 12:59:04,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:04,520 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:59:04,520 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] [2022-12-12 12:59:04,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-12-12 12:59:04,520 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:59:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:59:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash 908493854, now seen corresponding path program 60 times [2022-12-12 12:59:04,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:59:04,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702929059] [2022-12-12 12:59:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:59:04,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:59:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:59:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:59:04,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:59:04,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702929059] [2022-12-12 12:59:04,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702929059] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:59:04,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:59:04,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:59:04,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110467405] [2022-12-12 12:59:04,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:59:04,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:59:04,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:59:04,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:59:04,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:59:04,862 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:59:04,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 5110 transitions, 73139 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:04,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:59:04,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:59:04,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:59:14,374 INFO L130 PetriNetUnfolder]: 12592/36457 cut-off events. [2022-12-12 12:59:14,374 INFO L131 PetriNetUnfolder]: For 264468/266533 co-relation queries the response was YES. [2022-12-12 12:59:14,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179811 conditions, 36457 events. 12592/36457 cut-off events. For 264468/266533 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 405876 event pairs, 1857 based on Foata normal form. 336/34370 useless extension candidates. Maximal degree in co-relation 156744. Up to 15337 conditions per place. [2022-12-12 12:59:14,602 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2877 selfloop transitions, 567 changer transitions 1483/5231 dead transitions. [2022-12-12 12:59:14,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1658 places, 5231 transitions, 84852 flow [2022-12-12 12:59:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 12:59:14,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 12:59:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 9152 transitions. [2022-12-12 12:59:14,607 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6334440753045404 [2022-12-12 12:59:14,607 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1353 predicate places. [2022-12-12 12:59:14,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1658 places, 5231 transitions, 84852 flow [2022-12-12 12:59:14,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1644 places, 5231 transitions, 75859 flow, removed 3970 selfloop flow, removed 14 redundant places. [2022-12-12 12:59:14,915 INFO L495 AbstractCegarLoop]: Abstraction has has 1644 places, 5231 transitions, 75859 flow [2022-12-12 12:59:14,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:14,915 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:59:14,915 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] [2022-12-12 12:59:14,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-12-12 12:59:14,916 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:59:14,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:59:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1103876428, now seen corresponding path program 61 times [2022-12-12 12:59:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:59:14,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339905793] [2022-12-12 12:59:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:59:14,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:59:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:59:15,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:59:15,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:59:15,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339905793] [2022-12-12 12:59:15,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339905793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:59:15,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:59:15,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-12-12 12:59:15,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733882228] [2022-12-12 12:59:15,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:59:15,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-12 12:59:15,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:59:15,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-12 12:59:15,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=549, Unknown=0, NotChecked=0, Total=600 [2022-12-12 12:59:15,379 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 336 [2022-12-12 12:59:15,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1644 places, 5231 transitions, 75859 flow. Second operand has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:15,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:59:15,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 336 [2022-12-12 12:59:15,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:59:27,433 INFO L130 PetriNetUnfolder]: 12693/36978 cut-off events. [2022-12-12 12:59:27,433 INFO L131 PetriNetUnfolder]: For 254541/256766 co-relation queries the response was YES. [2022-12-12 12:59:27,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189192 conditions, 36978 events. 12693/36978 cut-off events. For 254541/256766 co-relation queries the response was YES. Maximal size of possible extension queue 706. Compared 414024 event pairs, 1880 based on Foata normal form. 309/34838 useless extension candidates. Maximal degree in co-relation 164193. Up to 19356 conditions per place. [2022-12-12 12:59:27,674 INFO L137 encePairwiseOnDemand]: 291/336 looper letters, 3225 selfloop transitions, 403 changer transitions 1563/5352 dead transitions. [2022-12-12 12:59:27,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1682 places, 5352 transitions, 87675 flow [2022-12-12 12:59:27,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-12-12 12:59:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2022-12-12 12:59:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7358 transitions. [2022-12-12 12:59:27,678 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5615079365079365 [2022-12-12 12:59:27,678 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1377 predicate places. [2022-12-12 12:59:27,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1682 places, 5352 transitions, 87675 flow [2022-12-12 12:59:28,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1664 places, 5352 transitions, 79579 flow, removed 3819 selfloop flow, removed 18 redundant places. [2022-12-12 12:59:28,007 INFO L495 AbstractCegarLoop]: Abstraction has has 1664 places, 5352 transitions, 79579 flow [2022-12-12 12:59:28,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 172.6) internal successors, (4315), 25 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:28,008 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:59:28,008 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] [2022-12-12 12:59:28,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-12-12 12:59:28,008 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:59:28,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:59:28,009 INFO L85 PathProgramCache]: Analyzing trace with hash 332583182, now seen corresponding path program 62 times [2022-12-12 12:59:28,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:59:28,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450180117] [2022-12-12 12:59:28,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:59:28,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:59:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:59:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:59:28,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:59:28,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450180117] [2022-12-12 12:59:28,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450180117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:59:28,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:59:28,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:59:28,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860751813] [2022-12-12 12:59:28,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:59:28,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:59:28,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:59:28,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:59:28,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:59:28,292 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:59:28,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1664 places, 5352 transitions, 79579 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:28,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:59:28,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:59:28,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:59:39,314 INFO L130 PetriNetUnfolder]: 12699/37036 cut-off events. [2022-12-12 12:59:39,314 INFO L131 PetriNetUnfolder]: For 273677/276160 co-relation queries the response was YES. [2022-12-12 12:59:39,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195659 conditions, 37036 events. 12699/37036 cut-off events. For 273677/276160 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 414590 event pairs, 1849 based on Foata normal form. 372/34954 useless extension candidates. Maximal degree in co-relation 119157. Up to 17412 conditions per place. [2022-12-12 12:59:39,553 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2882 selfloop transitions, 564 changer transitions 1595/5368 dead transitions. [2022-12-12 12:59:39,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1704 places, 5368 transitions, 89930 flow [2022-12-12 12:59:39,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-12-12 12:59:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-12-12 12:59:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 8728 transitions. [2022-12-12 12:59:39,557 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6335656213704994 [2022-12-12 12:59:39,557 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1399 predicate places. [2022-12-12 12:59:39,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1704 places, 5368 transitions, 89930 flow [2022-12-12 12:59:39,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1685 places, 5368 transitions, 82957 flow, removed 3208 selfloop flow, removed 19 redundant places. [2022-12-12 12:59:39,883 INFO L495 AbstractCegarLoop]: Abstraction has has 1685 places, 5368 transitions, 82957 flow [2022-12-12 12:59:39,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:39,884 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:59:39,884 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] [2022-12-12 12:59:39,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-12-12 12:59:39,884 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:59:39,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:59:39,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1417377626, now seen corresponding path program 63 times [2022-12-12 12:59:39,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:59:39,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229721613] [2022-12-12 12:59:39,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:59:39,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:59:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:59:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:59:40,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:59:40,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229721613] [2022-12-12 12:59:40,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229721613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:59:40,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:59:40,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:59:40,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101366561] [2022-12-12 12:59:40,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:59:40,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:59:40,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:59:40,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:59:40,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:59:40,180 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:59:40,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1685 places, 5368 transitions, 82957 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:40,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:59:40,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:59:40,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 12:59:51,184 INFO L130 PetriNetUnfolder]: 12703/37050 cut-off events. [2022-12-12 12:59:51,184 INFO L131 PetriNetUnfolder]: For 299505/302105 co-relation queries the response was YES. [2022-12-12 12:59:51,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205002 conditions, 37050 events. 12703/37050 cut-off events. For 299505/302105 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 415078 event pairs, 1853 based on Foata normal form. 367/34958 useless extension candidates. Maximal degree in co-relation 178735. Up to 17085 conditions per place. [2022-12-12 12:59:51,480 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2894 selfloop transitions, 534 changer transitions 1619/5373 dead transitions. [2022-12-12 12:59:51,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1726 places, 5373 transitions, 93189 flow [2022-12-12 12:59:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-12-12 12:59:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-12-12 12:59:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 8957 transitions. [2022-12-12 12:59:51,484 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6347080498866213 [2022-12-12 12:59:51,485 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1421 predicate places. [2022-12-12 12:59:51,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1726 places, 5373 transitions, 93189 flow [2022-12-12 12:59:51,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1704 places, 5373 transitions, 82862 flow, removed 4697 selfloop flow, removed 22 redundant places. [2022-12-12 12:59:51,812 INFO L495 AbstractCegarLoop]: Abstraction has has 1704 places, 5373 transitions, 82862 flow [2022-12-12 12:59:51,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:51,812 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 12:59:51,813 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] [2022-12-12 12:59:51,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-12-12 12:59:51,813 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 12:59:51,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 12:59:51,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1461606816, now seen corresponding path program 64 times [2022-12-12 12:59:51,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 12:59:51,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785102190] [2022-12-12 12:59:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 12:59:51,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 12:59:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 12:59:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 12:59:52,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 12:59:52,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785102190] [2022-12-12 12:59:52,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785102190] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 12:59:52,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 12:59:52,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 12:59:52,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66149719] [2022-12-12 12:59:52,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 12:59:52,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 12:59:52,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 12:59:52,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 12:59:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 12:59:52,153 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 12:59:52,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1704 places, 5373 transitions, 82862 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 12:59:52,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 12:59:52,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 12:59:52,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:00:03,363 INFO L130 PetriNetUnfolder]: 12757/37241 cut-off events. [2022-12-12 13:00:03,363 INFO L131 PetriNetUnfolder]: For 312769/315235 co-relation queries the response was YES. [2022-12-12 13:00:03,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206411 conditions, 37241 events. 12757/37241 cut-off events. For 312769/315235 co-relation queries the response was YES. Maximal size of possible extension queue 713. Compared 418155 event pairs, 1849 based on Foata normal form. 268/35043 useless extension candidates. Maximal degree in co-relation 179614. Up to 16660 conditions per place. [2022-12-12 13:00:03,604 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 2969 selfloop transitions, 506 changer transitions 1653/5454 dead transitions. [2022-12-12 13:00:03,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1747 places, 5454 transitions, 95076 flow [2022-12-12 13:00:03,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 13:00:03,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 13:00:03,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 9352 transitions. [2022-12-12 13:00:03,609 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6325757575757576 [2022-12-12 13:00:03,609 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1442 predicate places. [2022-12-12 13:00:03,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1747 places, 5454 transitions, 95076 flow [2022-12-12 13:00:03,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1737 places, 5454 transitions, 85126 flow, removed 4758 selfloop flow, removed 10 redundant places. [2022-12-12 13:00:03,966 INFO L495 AbstractCegarLoop]: Abstraction has has 1737 places, 5454 transitions, 85126 flow [2022-12-12 13:00:03,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:03,967 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:00:03,967 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] [2022-12-12 13:00:03,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-12-12 13:00:03,967 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:00:03,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:00:03,968 INFO L85 PathProgramCache]: Analyzing trace with hash 349330482, now seen corresponding path program 65 times [2022-12-12 13:00:03,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:00:03,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925866857] [2022-12-12 13:00:03,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:00:03,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:00:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:00:04,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:00:04,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:00:04,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925866857] [2022-12-12 13:00:04,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925866857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:00:04,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:00:04,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:00:04,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291283662] [2022-12-12 13:00:04,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:00:04,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:00:04,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:00:04,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:00:04,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:00:04,281 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:00:04,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1737 places, 5454 transitions, 85126 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:04,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:00:04,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:00:04,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:00:15,838 INFO L130 PetriNetUnfolder]: 12922/37798 cut-off events. [2022-12-12 13:00:15,838 INFO L131 PetriNetUnfolder]: For 328467/331092 co-relation queries the response was YES. [2022-12-12 13:00:15,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211160 conditions, 37798 events. 12922/37798 cut-off events. For 328467/331092 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 425983 event pairs, 1858 based on Foata normal form. 284/35590 useless extension candidates. Maximal degree in co-relation 127082. Up to 16344 conditions per place. [2022-12-12 13:00:16,090 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3051 selfloop transitions, 570 changer transitions 1679/5626 dead transitions. [2022-12-12 13:00:16,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1785 places, 5626 transitions, 98844 flow [2022-12-12 13:00:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 13:00:16,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 13:00:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10372 transitions. [2022-12-12 13:00:16,096 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.629980563654033 [2022-12-12 13:00:16,097 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1480 predicate places. [2022-12-12 13:00:16,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1785 places, 5626 transitions, 98844 flow [2022-12-12 13:00:16,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1772 places, 5626 transitions, 87914 flow, removed 5081 selfloop flow, removed 13 redundant places. [2022-12-12 13:00:16,481 INFO L495 AbstractCegarLoop]: Abstraction has has 1772 places, 5626 transitions, 87914 flow [2022-12-12 13:00:16,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:16,482 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:00:16,482 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] [2022-12-12 13:00:16,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-12-12 13:00:16,482 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:00:16,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:00:16,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1108013966, now seen corresponding path program 66 times [2022-12-12 13:00:16,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:00:16,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266371661] [2022-12-12 13:00:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:00:16,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:00:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:00:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:00:16,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:00:16,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266371661] [2022-12-12 13:00:16,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266371661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:00:16,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:00:16,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:00:16,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854007697] [2022-12-12 13:00:16,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:00:16,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:00:16,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:00:16,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:00:16,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:00:16,826 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:00:16,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1772 places, 5626 transitions, 87914 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:16,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:00:16,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:00:16,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:00:27,745 INFO L130 PetriNetUnfolder]: 12929/37849 cut-off events. [2022-12-12 13:00:27,745 INFO L131 PetriNetUnfolder]: For 332454/335126 co-relation queries the response was YES. [2022-12-12 13:00:28,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211827 conditions, 37849 events. 12929/37849 cut-off events. For 332454/335126 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 427052 event pairs, 1853 based on Foata normal form. 289/35644 useless extension candidates. Maximal degree in co-relation 184577. Up to 16298 conditions per place. [2022-12-12 13:00:28,136 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3042 selfloop transitions, 582 changer transitions 1697/5647 dead transitions. [2022-12-12 13:00:28,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1815 places, 5647 transitions, 98900 flow [2022-12-12 13:00:28,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-12 13:00:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-12-12 13:00:28,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 9336 transitions. [2022-12-12 13:00:28,140 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6314935064935064 [2022-12-12 13:00:28,141 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1510 predicate places. [2022-12-12 13:00:28,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1815 places, 5647 transitions, 98900 flow [2022-12-12 13:00:28,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1797 places, 5647 transitions, 89233 flow, removed 4427 selfloop flow, removed 18 redundant places. [2022-12-12 13:00:28,585 INFO L495 AbstractCegarLoop]: Abstraction has has 1797 places, 5647 transitions, 89233 flow [2022-12-12 13:00:28,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:28,586 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:00:28,586 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] [2022-12-12 13:00:28,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-12-12 13:00:28,586 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:00:28,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:00:28,587 INFO L85 PathProgramCache]: Analyzing trace with hash -913352784, now seen corresponding path program 67 times [2022-12-12 13:00:28,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:00:28,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702832832] [2022-12-12 13:00:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:00:28,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:00:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:00:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:00:29,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:00:29,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702832832] [2022-12-12 13:00:29,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702832832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:00:29,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:00:29,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:00:29,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9036848] [2022-12-12 13:00:29,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:00:29,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:00:29,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:00:29,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:00:29,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:00:29,027 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:00:29,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1797 places, 5647 transitions, 89233 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:29,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:00:29,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:00:29,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:00:40,749 INFO L130 PetriNetUnfolder]: 12928/37860 cut-off events. [2022-12-12 13:00:40,750 INFO L131 PetriNetUnfolder]: For 339765/342295 co-relation queries the response was YES. [2022-12-12 13:00:40,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213595 conditions, 37860 events. 12928/37860 cut-off events. For 339765/342295 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 426864 event pairs, 1857 based on Foata normal form. 284/35648 useless extension candidates. Maximal degree in co-relation 128407. Up to 16280 conditions per place. [2022-12-12 13:00:40,996 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3036 selfloop transitions, 575 changer transitions 1717/5654 dead transitions. [2022-12-12 13:00:40,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1836 places, 5654 transitions, 100054 flow [2022-12-12 13:00:40,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-12-12 13:00:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-12-12 13:00:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 8544 transitions. [2022-12-12 13:00:41,001 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6357142857142857 [2022-12-12 13:00:41,001 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1531 predicate places. [2022-12-12 13:00:41,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1836 places, 5654 transitions, 100054 flow [2022-12-12 13:00:41,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1809 places, 5654 transitions, 89435 flow, removed 4644 selfloop flow, removed 27 redundant places. [2022-12-12 13:00:41,426 INFO L495 AbstractCegarLoop]: Abstraction has has 1809 places, 5654 transitions, 89435 flow [2022-12-12 13:00:41,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:41,426 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:00:41,427 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] [2022-12-12 13:00:41,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-12-12 13:00:41,427 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:00:41,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:00:41,427 INFO L85 PathProgramCache]: Analyzing trace with hash -269070408, now seen corresponding path program 68 times [2022-12-12 13:00:41,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:00:41,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474512129] [2022-12-12 13:00:41,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:00:41,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:00:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:00:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:00:41,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:00:41,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474512129] [2022-12-12 13:00:41,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474512129] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:00:41,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:00:41,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:00:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053551518] [2022-12-12 13:00:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:00:41,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:00:41,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:00:41,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:00:41,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:00:41,747 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:00:41,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1809 places, 5654 transitions, 89435 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:41,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:00:41,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:00:41,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:00:53,272 INFO L130 PetriNetUnfolder]: 12928/37844 cut-off events. [2022-12-12 13:00:53,272 INFO L131 PetriNetUnfolder]: For 334680/337284 co-relation queries the response was YES. [2022-12-12 13:00:53,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213040 conditions, 37844 events. 12928/37844 cut-off events. For 334680/337284 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 426988 event pairs, 1855 based on Foata normal form. 289/35640 useless extension candidates. Maximal degree in co-relation 185320. Up to 16269 conditions per place. [2022-12-12 13:00:53,527 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3020 selfloop transitions, 568 changer transitions 1739/5653 dead transitions. [2022-12-12 13:00:53,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1854 places, 5653 transitions, 100067 flow [2022-12-12 13:00:53,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-12 13:00:53,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-12-12 13:00:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 9751 transitions. [2022-12-12 13:00:53,531 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6308876811594203 [2022-12-12 13:00:53,532 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1549 predicate places. [2022-12-12 13:00:53,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1854 places, 5653 transitions, 100067 flow [2022-12-12 13:00:53,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1826 places, 5653 transitions, 88826 flow, removed 4756 selfloop flow, removed 28 redundant places. [2022-12-12 13:00:53,951 INFO L495 AbstractCegarLoop]: Abstraction has has 1826 places, 5653 transitions, 88826 flow [2022-12-12 13:00:53,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:53,952 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:00:53,952 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] [2022-12-12 13:00:53,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-12-12 13:00:53,952 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:00:53,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:00:53,952 INFO L85 PathProgramCache]: Analyzing trace with hash -999175174, now seen corresponding path program 69 times [2022-12-12 13:00:53,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:00:53,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128980905] [2022-12-12 13:00:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:00:53,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:00:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:00:54,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:00:54,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:00:54,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128980905] [2022-12-12 13:00:54,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128980905] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:00:54,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:00:54,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:00:54,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371747431] [2022-12-12 13:00:54,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:00:54,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:00:54,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:00:54,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:00:54,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:00:54,269 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:00:54,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1826 places, 5653 transitions, 88826 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:00:54,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:00:54,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:00:54,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:01:05,715 INFO L130 PetriNetUnfolder]: 12955/37996 cut-off events. [2022-12-12 13:01:05,715 INFO L131 PetriNetUnfolder]: For 333721/336424 co-relation queries the response was YES. [2022-12-12 13:01:05,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213295 conditions, 37996 events. 12955/37996 cut-off events. For 333721/336424 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 429525 event pairs, 1858 based on Foata normal form. 285/35779 useless extension candidates. Maximal degree in co-relation 127492. Up to 16311 conditions per place. [2022-12-12 13:01:05,970 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3052 selfloop transitions, 541 changer transitions 1769/5688 dead transitions. [2022-12-12 13:01:05,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1871 places, 5688 transitions, 100335 flow [2022-12-12 13:01:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-12-12 13:01:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-12-12 13:01:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 9783 transitions. [2022-12-12 13:01:05,975 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6329580745341615 [2022-12-12 13:01:05,975 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1566 predicate places. [2022-12-12 13:01:05,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1871 places, 5688 transitions, 100335 flow [2022-12-12 13:01:06,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1848 places, 5688 transitions, 90027 flow, removed 4686 selfloop flow, removed 23 redundant places. [2022-12-12 13:01:06,543 INFO L495 AbstractCegarLoop]: Abstraction has has 1848 places, 5688 transitions, 90027 flow [2022-12-12 13:01:06,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:06,544 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:01:06,544 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] [2022-12-12 13:01:06,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-12-12 13:01:06,544 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:01:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:01:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash 797397046, now seen corresponding path program 70 times [2022-12-12 13:01:06,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:01:06,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002738093] [2022-12-12 13:01:06,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:01:06,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:01:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:01:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:01:06,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:01:06,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002738093] [2022-12-12 13:01:06,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002738093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:01:06,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:01:06,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:01:06,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362567767] [2022-12-12 13:01:06,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:01:06,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:01:06,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:01:06,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:01:06,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:01:06,861 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:01:06,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1848 places, 5688 transitions, 90027 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:06,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:01:06,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:01:06,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:01:18,990 INFO L130 PetriNetUnfolder]: 13089/38394 cut-off events. [2022-12-12 13:01:18,990 INFO L131 PetriNetUnfolder]: For 349913/352674 co-relation queries the response was YES. [2022-12-12 13:01:19,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217970 conditions, 38394 events. 13089/38394 cut-off events. For 349913/352674 co-relation queries the response was YES. Maximal size of possible extension queue 761. Compared 435112 event pairs, 1848 based on Foata normal form. 308/36195 useless extension candidates. Maximal degree in co-relation 128266. Up to 16502 conditions per place. [2022-12-12 13:01:19,228 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3073 selfloop transitions, 640 changer transitions 1795/5834 dead transitions. [2022-12-12 13:01:19,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1897 places, 5834 transitions, 104220 flow [2022-12-12 13:01:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 13:01:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 13:01:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10539 transitions. [2022-12-12 13:01:19,233 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6273214285714286 [2022-12-12 13:01:19,233 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1592 predicate places. [2022-12-12 13:01:19,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1897 places, 5834 transitions, 104220 flow [2022-12-12 13:01:19,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1883 places, 5834 transitions, 91700 flow, removed 5654 selfloop flow, removed 14 redundant places. [2022-12-12 13:01:19,734 INFO L495 AbstractCegarLoop]: Abstraction has has 1883 places, 5834 transitions, 91700 flow [2022-12-12 13:01:19,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:19,735 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:01:19,735 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] [2022-12-12 13:01:19,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-12-12 13:01:19,735 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:01:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:01:19,735 INFO L85 PathProgramCache]: Analyzing trace with hash -932055984, now seen corresponding path program 71 times [2022-12-12 13:01:19,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:01:19,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193276262] [2022-12-12 13:01:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:01:19,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:01:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:01:20,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:01:20,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:01:20,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193276262] [2022-12-12 13:01:20,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193276262] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:01:20,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:01:20,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:01:20,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507772957] [2022-12-12 13:01:20,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:01:20,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:01:20,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:01:20,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:01:20,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:01:20,047 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:01:20,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1883 places, 5834 transitions, 91700 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:20,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:01:20,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:01:20,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:01:31,670 INFO L130 PetriNetUnfolder]: 13147/38579 cut-off events. [2022-12-12 13:01:31,671 INFO L131 PetriNetUnfolder]: For 336973/339827 co-relation queries the response was YES. [2022-12-12 13:01:31,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217639 conditions, 38579 events. 13147/38579 cut-off events. For 336973/339827 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 437856 event pairs, 1852 based on Foata normal form. 332/36400 useless extension candidates. Maximal degree in co-relation 127480. Up to 16530 conditions per place. [2022-12-12 13:01:32,056 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3095 selfloop transitions, 661 changer transitions 1813/5895 dead transitions. [2022-12-12 13:01:32,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1929 places, 5895 transitions, 103850 flow [2022-12-12 13:01:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-12-12 13:01:32,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-12-12 13:01:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 9928 transitions. [2022-12-12 13:01:32,062 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6286727456940223 [2022-12-12 13:01:32,062 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1624 predicate places. [2022-12-12 13:01:32,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1929 places, 5895 transitions, 103850 flow [2022-12-12 13:01:32,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1909 places, 5895 transitions, 93268 flow, removed 4643 selfloop flow, removed 20 redundant places. [2022-12-12 13:01:32,500 INFO L495 AbstractCegarLoop]: Abstraction has has 1909 places, 5895 transitions, 93268 flow [2022-12-12 13:01:32,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:32,501 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:01:32,501 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] [2022-12-12 13:01:32,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-12-12 13:01:32,501 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:01:32,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:01:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash 766814820, now seen corresponding path program 72 times [2022-12-12 13:01:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:01:32,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592550255] [2022-12-12 13:01:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:01:32,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:01:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:01:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:01:32,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:01:32,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592550255] [2022-12-12 13:01:32,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592550255] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:01:32,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:01:32,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:01:32,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799414913] [2022-12-12 13:01:32,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:01:32,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:01:32,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:01:32,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:01:32,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:01:32,807 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:01:32,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1909 places, 5895 transitions, 93268 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:32,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:01:32,808 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:01:32,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:01:44,707 INFO L130 PetriNetUnfolder]: 13146/38562 cut-off events. [2022-12-12 13:01:44,707 INFO L131 PetriNetUnfolder]: For 342642/345276 co-relation queries the response was YES. [2022-12-12 13:01:44,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218397 conditions, 38562 events. 13146/38562 cut-off events. For 342642/345276 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 437320 event pairs, 1856 based on Foata normal form. 324/36374 useless extension candidates. Maximal degree in co-relation 188756. Up to 16514 conditions per place. [2022-12-12 13:01:44,971 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3089 selfloop transitions, 654 changer transitions 1833/5902 dead transitions. [2022-12-12 13:01:44,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1951 places, 5902 transitions, 104601 flow [2022-12-12 13:01:44,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-12 13:01:44,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2022-12-12 13:01:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 9136 transitions. [2022-12-12 13:01:44,976 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6323366555924695 [2022-12-12 13:01:44,976 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1646 predicate places. [2022-12-12 13:01:44,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1951 places, 5902 transitions, 104601 flow [2022-12-12 13:01:45,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1921 places, 5902 transitions, 93945 flow, removed 4583 selfloop flow, removed 30 redundant places. [2022-12-12 13:01:45,490 INFO L495 AbstractCegarLoop]: Abstraction has has 1921 places, 5902 transitions, 93945 flow [2022-12-12 13:01:45,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:45,490 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:01:45,491 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] [2022-12-12 13:01:45,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-12-12 13:01:45,491 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:01:45,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:01:45,491 INFO L85 PathProgramCache]: Analyzing trace with hash 367765188, now seen corresponding path program 73 times [2022-12-12 13:01:45,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:01:45,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745450855] [2022-12-12 13:01:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:01:45,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:01:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:01:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:01:45,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:01:45,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745450855] [2022-12-12 13:01:45,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745450855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:01:45,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:01:45,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:01:45,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501126803] [2022-12-12 13:01:45,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:01:45,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:01:45,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:01:45,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:01:45,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:01:45,837 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:01:45,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1921 places, 5902 transitions, 93945 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:45,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:01:45,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:01:45,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:01:57,897 INFO L130 PetriNetUnfolder]: 13230/38923 cut-off events. [2022-12-12 13:01:57,898 INFO L131 PetriNetUnfolder]: For 349762/352611 co-relation queries the response was YES. [2022-12-12 13:01:58,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221853 conditions, 38923 events. 13230/38923 cut-off events. For 349762/352611 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 443417 event pairs, 1848 based on Foata normal form. 346/36744 useless extension candidates. Maximal degree in co-relation 127740. Up to 16656 conditions per place. [2022-12-12 13:01:58,151 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3205 selfloop transitions, 619 changer transitions 1859/6009 dead transitions. [2022-12-12 13:01:58,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1970 places, 6009 transitions, 107980 flow [2022-12-12 13:01:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-12-12 13:01:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-12-12 13:01:58,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 10561 transitions. [2022-12-12 13:01:58,156 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6286309523809523 [2022-12-12 13:01:58,156 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1665 predicate places. [2022-12-12 13:01:58,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1970 places, 6009 transitions, 107980 flow [2022-12-12 13:01:58,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1954 places, 6009 transitions, 96650 flow, removed 5245 selfloop flow, removed 16 redundant places. [2022-12-12 13:01:58,579 INFO L495 AbstractCegarLoop]: Abstraction has has 1954 places, 6009 transitions, 96650 flow [2022-12-12 13:01:58,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:58,579 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:01:58,579 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] [2022-12-12 13:01:58,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-12-12 13:01:58,580 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:01:58,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:01:58,580 INFO L85 PathProgramCache]: Analyzing trace with hash -894540754, now seen corresponding path program 74 times [2022-12-12 13:01:58,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:01:58,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317899648] [2022-12-12 13:01:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:01:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:01:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:01:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:01:58,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:01:58,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317899648] [2022-12-12 13:01:58,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317899648] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:01:58,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:01:58,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:01:58,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183897150] [2022-12-12 13:01:58,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:01:58,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:01:58,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:01:58,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:01:58,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:01:58,888 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:01:58,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1954 places, 6009 transitions, 96650 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:01:58,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:01:58,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:01:58,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:02:11,423 INFO L130 PetriNetUnfolder]: 13247/38965 cut-off events. [2022-12-12 13:02:11,424 INFO L131 PetriNetUnfolder]: For 365638/368398 co-relation queries the response was YES. [2022-12-12 13:02:11,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223364 conditions, 38965 events. 13247/38965 cut-off events. For 365638/368398 co-relation queries the response was YES. Maximal size of possible extension queue 788. Compared 444146 event pairs, 1850 based on Foata normal form. 330/36770 useless extension candidates. Maximal degree in co-relation 191903. Up to 16629 conditions per place. [2022-12-12 13:02:11,696 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3148 selfloop transitions, 676 changer transitions 1881/6031 dead transitions. [2022-12-12 13:02:11,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2002 places, 6031 transitions, 108566 flow [2022-12-12 13:02:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-12 13:02:11,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2022-12-12 13:02:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 10343 transitions. [2022-12-12 13:02:11,702 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6282191448007775 [2022-12-12 13:02:11,702 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1697 predicate places. [2022-12-12 13:02:11,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2002 places, 6031 transitions, 108566 flow [2022-12-12 13:02:12,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1971 places, 6031 transitions, 96871 flow, removed 5010 selfloop flow, removed 31 redundant places. [2022-12-12 13:02:12,223 INFO L495 AbstractCegarLoop]: Abstraction has has 1971 places, 6031 transitions, 96871 flow [2022-12-12 13:02:12,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:12,224 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:02:12,224 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] [2022-12-12 13:02:12,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-12-12 13:02:12,224 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:02:12,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:02:12,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1338825804, now seen corresponding path program 75 times [2022-12-12 13:02:12,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:02:12,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312831431] [2022-12-12 13:02:12,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:02:12,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:02:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:02:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:02:12,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:02:12,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312831431] [2022-12-12 13:02:12,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312831431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:02:12,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:02:12,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:02:12,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719673375] [2022-12-12 13:02:12,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:02:12,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:02:12,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:02:12,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:02:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:02:12,631 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:02:12,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1971 places, 6031 transitions, 96871 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:12,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:02:12,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:02:12,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:02:24,522 INFO L130 PetriNetUnfolder]: 13254/38981 cut-off events. [2022-12-12 13:02:24,522 INFO L131 PetriNetUnfolder]: For 362293/365051 co-relation queries the response was YES. [2022-12-12 13:02:24,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222990 conditions, 38981 events. 13254/38981 cut-off events. For 362293/365051 co-relation queries the response was YES. Maximal size of possible extension queue 788. Compared 444423 event pairs, 1852 based on Foata normal form. 334/36792 useless extension candidates. Maximal degree in co-relation 191457. Up to 16640 conditions per place. [2022-12-12 13:02:24,826 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3200 selfloop transitions, 627 changer transitions 1899/6052 dead transitions. [2022-12-12 13:02:24,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2015 places, 6052 transitions, 108721 flow [2022-12-12 13:02:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-12-12 13:02:24,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-12-12 13:02:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 9525 transitions. [2022-12-12 13:02:24,831 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6299603174603174 [2022-12-12 13:02:24,831 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1710 predicate places. [2022-12-12 13:02:24,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2015 places, 6052 transitions, 108721 flow [2022-12-12 13:02:25,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1997 places, 6052 transitions, 98653 flow, removed 4610 selfloop flow, removed 18 redundant places. [2022-12-12 13:02:25,290 INFO L495 AbstractCegarLoop]: Abstraction has has 1997 places, 6052 transitions, 98653 flow [2022-12-12 13:02:25,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:25,291 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:02:25,291 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] [2022-12-12 13:02:25,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-12-12 13:02:25,291 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:02:25,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:02:25,291 INFO L85 PathProgramCache]: Analyzing trace with hash -976204402, now seen corresponding path program 76 times [2022-12-12 13:02:25,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:02:25,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172082612] [2022-12-12 13:02:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:02:25,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:02:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:02:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:02:25,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:02:25,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172082612] [2022-12-12 13:02:25,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172082612] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:02:25,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:02:25,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:02:25,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981772896] [2022-12-12 13:02:25,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:02:25,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:02:25,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:02:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:02:25,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:02:25,655 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:02:25,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1997 places, 6052 transitions, 98653 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:25,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:02:25,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:02:25,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:02:39,244 INFO L130 PetriNetUnfolder]: 13440/39686 cut-off events. [2022-12-12 13:02:39,244 INFO L131 PetriNetUnfolder]: For 379751/382817 co-relation queries the response was YES. [2022-12-12 13:02:39,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228322 conditions, 39686 events. 13440/39686 cut-off events. For 379751/382817 co-relation queries the response was YES. Maximal size of possible extension queue 799. Compared 454256 event pairs, 1870 based on Foata normal form. 489/37624 useless extension candidates. Maximal degree in co-relation 195572. Up to 17025 conditions per place. [2022-12-12 13:02:39,502 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3041 selfloop transitions, 849 changer transitions 2005/6219 dead transitions. [2022-12-12 13:02:39,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2051 places, 6219 transitions, 112182 flow [2022-12-12 13:02:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-12 13:02:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-12-12 13:02:39,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 11750 transitions. [2022-12-12 13:02:39,508 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6358225108225108 [2022-12-12 13:02:39,508 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1746 predicate places. [2022-12-12 13:02:39,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2051 places, 6219 transitions, 112182 flow [2022-12-12 13:02:40,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2028 places, 6219 transitions, 99176 flow, removed 5264 selfloop flow, removed 23 redundant places. [2022-12-12 13:02:40,128 INFO L495 AbstractCegarLoop]: Abstraction has has 2028 places, 6219 transitions, 99176 flow [2022-12-12 13:02:40,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:40,129 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:02:40,129 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] [2022-12-12 13:02:40,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-12-12 13:02:40,129 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:02:40,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:02:40,130 INFO L85 PathProgramCache]: Analyzing trace with hash 207088058, now seen corresponding path program 77 times [2022-12-12 13:02:40,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:02:40,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341200452] [2022-12-12 13:02:40,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:02:40,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:02:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:02:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:02:40,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:02:40,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341200452] [2022-12-12 13:02:40,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341200452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:02:40,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:02:40,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:02:40,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352251102] [2022-12-12 13:02:40,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:02:40,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:02:40,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:02:40,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:02:40,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:02:40,430 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:02:40,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2028 places, 6219 transitions, 99176 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:40,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:02:40,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:02:40,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:02:54,814 INFO L130 PetriNetUnfolder]: 15438/44984 cut-off events. [2022-12-12 13:02:54,814 INFO L131 PetriNetUnfolder]: For 360561/364138 co-relation queries the response was YES. [2022-12-12 13:02:54,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260253 conditions, 44984 events. 15438/44984 cut-off events. For 360561/364138 co-relation queries the response was YES. Maximal size of possible extension queue 897. Compared 523898 event pairs, 2221 based on Foata normal form. 366/42459 useless extension candidates. Maximal degree in co-relation 152101. Up to 20046 conditions per place. [2022-12-12 13:02:55,135 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3906 selfloop transitions, 838 changer transitions 2033/7101 dead transitions. [2022-12-12 13:02:55,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2084 places, 7101 transitions, 125416 flow [2022-12-12 13:02:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-12-12 13:02:55,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2022-12-12 13:02:55,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 12002 transitions. [2022-12-12 13:02:55,140 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6266708437761069 [2022-12-12 13:02:55,140 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1779 predicate places. [2022-12-12 13:02:55,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2084 places, 7101 transitions, 125416 flow [2022-12-12 13:02:55,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2079 places, 7101 transitions, 115326 flow, removed 4968 selfloop flow, removed 5 redundant places. [2022-12-12 13:02:55,859 INFO L495 AbstractCegarLoop]: Abstraction has has 2079 places, 7101 transitions, 115326 flow [2022-12-12 13:02:55,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:55,859 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:02:55,860 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] [2022-12-12 13:02:55,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-12-12 13:02:55,860 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:02:55,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:02:55,860 INFO L85 PathProgramCache]: Analyzing trace with hash 836989452, now seen corresponding path program 78 times [2022-12-12 13:02:55,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:02:55,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327240585] [2022-12-12 13:02:55,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:02:55,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:02:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:02:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:02:56,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:02:56,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327240585] [2022-12-12 13:02:56,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327240585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:02:56,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:02:56,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:02:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807042186] [2022-12-12 13:02:56,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:02:56,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:02:56,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:02:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:02:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:02:56,169 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:02:56,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2079 places, 7101 transitions, 115326 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:02:56,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:02:56,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:02:56,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:03:11,471 INFO L130 PetriNetUnfolder]: 15496/45050 cut-off events. [2022-12-12 13:03:11,472 INFO L131 PetriNetUnfolder]: For 399639/403539 co-relation queries the response was YES. [2022-12-12 13:03:11,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273025 conditions, 45050 events. 15496/45050 cut-off events. For 399639/403539 co-relation queries the response was YES. Maximal size of possible extension queue 900. Compared 524184 event pairs, 2228 based on Foata normal form. 385/42567 useless extension candidates. Maximal degree in co-relation 161405. Up to 20058 conditions per place. [2022-12-12 13:03:11,763 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3925 selfloop transitions, 859 changer transitions 2051/7159 dead transitions. [2022-12-12 13:03:11,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2133 places, 7159 transitions, 129703 flow [2022-12-12 13:03:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-12 13:03:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-12-12 13:03:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 11596 transitions. [2022-12-12 13:03:11,768 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6274891774891775 [2022-12-12 13:03:11,768 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1828 predicate places. [2022-12-12 13:03:11,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2133 places, 7159 transitions, 129703 flow [2022-12-12 13:03:12,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2106 places, 7159 transitions, 115237 flow, removed 5953 selfloop flow, removed 27 redundant places. [2022-12-12 13:03:12,359 INFO L495 AbstractCegarLoop]: Abstraction has has 2106 places, 7159 transitions, 115237 flow [2022-12-12 13:03:12,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:03:12,360 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:03:12,360 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] [2022-12-12 13:03:12,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-12-12 13:03:12,360 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:03:12,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:03:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1098676552, now seen corresponding path program 79 times [2022-12-12 13:03:12,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:03:12,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477677426] [2022-12-12 13:03:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:03:12,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:03:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:03:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:03:12,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:03:12,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477677426] [2022-12-12 13:03:12,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477677426] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:03:12,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:03:12,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:03:12,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673433832] [2022-12-12 13:03:12,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:03:12,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:03:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:03:12,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:03:12,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:03:12,685 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:03:12,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2106 places, 7159 transitions, 115237 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:03:12,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:03:12,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:03:12,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:03:29,412 INFO L130 PetriNetUnfolder]: 15544/45216 cut-off events. [2022-12-12 13:03:29,413 INFO L131 PetriNetUnfolder]: For 390778/394562 co-relation queries the response was YES. [2022-12-12 13:03:29,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271905 conditions, 45216 events. 15544/45216 cut-off events. For 390778/394562 co-relation queries the response was YES. Maximal size of possible extension queue 912. Compared 526549 event pairs, 2266 based on Foata normal form. 394/42743 useless extension candidates. Maximal degree in co-relation 160088. Up to 20130 conditions per place. [2022-12-12 13:03:29,718 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 3888 selfloop transitions, 905 changer transitions 2104/7221 dead transitions. [2022-12-12 13:03:29,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2166 places, 7221 transitions, 129732 flow [2022-12-12 13:03:29,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-12-12 13:03:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2022-12-12 13:03:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 12838 transitions. [2022-12-12 13:03:29,724 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6263661202185792 [2022-12-12 13:03:29,724 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1861 predicate places. [2022-12-12 13:03:29,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2166 places, 7221 transitions, 129732 flow [2022-12-12 13:03:30,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2142 places, 7221 transitions, 115844 flow, removed 5946 selfloop flow, removed 24 redundant places. [2022-12-12 13:03:30,281 INFO L495 AbstractCegarLoop]: Abstraction has has 2142 places, 7221 transitions, 115844 flow [2022-12-12 13:03:30,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:03:30,281 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:03:30,281 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] [2022-12-12 13:03:30,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-12-12 13:03:30,282 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:03:30,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:03:30,282 INFO L85 PathProgramCache]: Analyzing trace with hash -794862498, now seen corresponding path program 80 times [2022-12-12 13:03:30,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:03:30,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84755445] [2022-12-12 13:03:30,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:03:30,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:03:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:03:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:03:30,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:03:30,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84755445] [2022-12-12 13:03:30,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84755445] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:03:30,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:03:30,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:03:30,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661786101] [2022-12-12 13:03:30,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:03:30,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:03:30,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:03:30,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:03:30,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:03:30,582 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:03:30,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2142 places, 7221 transitions, 115844 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:03:30,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:03:30,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:03:30,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:03:46,974 INFO L130 PetriNetUnfolder]: 15898/46173 cut-off events. [2022-12-12 13:03:46,974 INFO L131 PetriNetUnfolder]: For 394607/398617 co-relation queries the response was YES. [2022-12-12 13:03:47,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276707 conditions, 46173 events. 15898/46173 cut-off events. For 394607/398617 co-relation queries the response was YES. Maximal size of possible extension queue 943. Compared 539532 event pairs, 2335 based on Foata normal form. 431/43673 useless extension candidates. Maximal degree in co-relation 240478. Up to 20600 conditions per place. [2022-12-12 13:03:47,296 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 4006 selfloop transitions, 918 changer transitions 2158/7406 dead transitions. [2022-12-12 13:03:47,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2196 places, 7406 transitions, 132507 flow [2022-12-12 13:03:47,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-12 13:03:47,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-12-12 13:03:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 11630 transitions. [2022-12-12 13:03:47,302 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6293290043290043 [2022-12-12 13:03:47,302 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1891 predicate places. [2022-12-12 13:03:47,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2196 places, 7406 transitions, 132507 flow [2022-12-12 13:03:47,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2173 places, 7406 transitions, 119040 flow, removed 5722 selfloop flow, removed 23 redundant places. [2022-12-12 13:03:47,910 INFO L495 AbstractCegarLoop]: Abstraction has has 2173 places, 7406 transitions, 119040 flow [2022-12-12 13:03:47,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:03:47,911 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:03:47,911 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] [2022-12-12 13:03:47,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-12-12 13:03:47,912 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:03:47,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:03:47,912 INFO L85 PathProgramCache]: Analyzing trace with hash -338784514, now seen corresponding path program 81 times [2022-12-12 13:03:47,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:03:47,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740304394] [2022-12-12 13:03:47,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:03:47,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:03:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:03:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:03:48,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:03:48,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740304394] [2022-12-12 13:03:48,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740304394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:03:48,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:03:48,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:03:48,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711057910] [2022-12-12 13:03:48,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:03:48,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:03:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:03:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:03:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:03:48,228 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:03:48,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2173 places, 7406 transitions, 119040 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:03:48,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:03:48,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:03:48,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:04:04,657 INFO L130 PetriNetUnfolder]: 15916/46114 cut-off events. [2022-12-12 13:04:04,657 INFO L131 PetriNetUnfolder]: For 397447/401327 co-relation queries the response was YES. [2022-12-12 13:04:04,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278023 conditions, 46114 events. 15916/46114 cut-off events. For 397447/401327 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 538520 event pairs, 2308 based on Foata normal form. 402/43618 useless extension candidates. Maximal degree in co-relation 241470. Up to 20618 conditions per place. [2022-12-12 13:04:05,009 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 4022 selfloop transitions, 988 changer transitions 2183/7517 dead transitions. [2022-12-12 13:04:05,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2223 places, 7517 transitions, 134897 flow [2022-12-12 13:04:05,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-12-12 13:04:05,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-12-12 13:04:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 10779 transitions. [2022-12-12 13:04:05,014 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6290266106442577 [2022-12-12 13:04:05,015 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1918 predicate places. [2022-12-12 13:04:05,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2223 places, 7517 transitions, 134897 flow [2022-12-12 13:04:05,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2206 places, 7517 transitions, 121395 flow, removed 5815 selfloop flow, removed 17 redundant places. [2022-12-12 13:04:05,664 INFO L495 AbstractCegarLoop]: Abstraction has has 2206 places, 7517 transitions, 121395 flow [2022-12-12 13:04:05,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:04:05,665 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:04:05,665 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] [2022-12-12 13:04:05,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-12-12 13:04:05,665 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:04:05,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:04:05,665 INFO L85 PathProgramCache]: Analyzing trace with hash 299269088, now seen corresponding path program 82 times [2022-12-12 13:04:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:04:05,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893982800] [2022-12-12 13:04:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:04:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:04:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:04:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:04:06,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:04:06,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893982800] [2022-12-12 13:04:06,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893982800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:04:06,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:04:06,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:04:06,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575613394] [2022-12-12 13:04:06,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:04:06,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:04:06,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:04:06,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:04:06,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:04:06,228 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:04:06,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2206 places, 7517 transitions, 121395 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:04:06,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:04:06,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:04:06,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:04:22,871 INFO L130 PetriNetUnfolder]: 15973/46367 cut-off events. [2022-12-12 13:04:22,872 INFO L131 PetriNetUnfolder]: For 402895/406807 co-relation queries the response was YES. [2022-12-12 13:04:23,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281150 conditions, 46367 events. 15973/46367 cut-off events. For 402895/406807 co-relation queries the response was YES. Maximal size of possible extension queue 952. Compared 542029 event pairs, 2360 based on Foata normal form. 390/43832 useless extension candidates. Maximal degree in co-relation 164627. Up to 20568 conditions per place. [2022-12-12 13:04:23,210 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 4035 selfloop transitions, 1000 changer transitions 2235/7594 dead transitions. [2022-12-12 13:04:23,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2258 places, 7594 transitions, 137298 flow [2022-12-12 13:04:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-12-12 13:04:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-12-12 13:04:23,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 11190 transitions. [2022-12-12 13:04:23,216 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6283692722371967 [2022-12-12 13:04:23,216 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1953 predicate places. [2022-12-12 13:04:23,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2258 places, 7594 transitions, 137298 flow [2022-12-12 13:04:23,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2230 places, 7594 transitions, 123085 flow, removed 5925 selfloop flow, removed 28 redundant places. [2022-12-12 13:04:23,894 INFO L495 AbstractCegarLoop]: Abstraction has has 2230 places, 7594 transitions, 123085 flow [2022-12-12 13:04:23,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:04:23,895 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:04:23,895 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] [2022-12-12 13:04:23,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-12-12 13:04:23,895 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:04:23,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:04:23,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1432950920, now seen corresponding path program 83 times [2022-12-12 13:04:23,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:04:23,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799327416] [2022-12-12 13:04:23,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:04:23,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:04:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:04:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:04:24,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:04:24,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799327416] [2022-12-12 13:04:24,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799327416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:04:24,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:04:24,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:04:24,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337508213] [2022-12-12 13:04:24,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:04:24,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:04:24,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:04:24,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:04:24,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:04:24,213 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:04:24,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2230 places, 7594 transitions, 123085 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:04:24,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:04:24,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:04:24,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:04:41,300 INFO L130 PetriNetUnfolder]: 15973/46330 cut-off events. [2022-12-12 13:04:41,300 INFO L131 PetriNetUnfolder]: For 404113/408031 co-relation queries the response was YES. [2022-12-12 13:04:41,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281606 conditions, 46330 events. 15973/46330 cut-off events. For 404113/408031 co-relation queries the response was YES. Maximal size of possible extension queue 950. Compared 541677 event pairs, 2336 based on Foata normal form. 409/43827 useless extension candidates. Maximal degree in co-relation 244343. Up to 20556 conditions per place. [2022-12-12 13:04:41,657 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 4020 selfloop transitions, 990 changer transitions 2259/7593 dead transitions. [2022-12-12 13:04:41,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2283 places, 7593 transitions, 137597 flow [2022-12-12 13:04:41,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-12-12 13:04:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-12-12 13:04:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 11402 transitions. [2022-12-12 13:04:41,664 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6284171075837742 [2022-12-12 13:04:41,664 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 1978 predicate places. [2022-12-12 13:04:41,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2283 places, 7593 transitions, 137597 flow [2022-12-12 13:04:42,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2258 places, 7593 transitions, 123314 flow, removed 6063 selfloop flow, removed 25 redundant places. [2022-12-12 13:04:42,341 INFO L495 AbstractCegarLoop]: Abstraction has has 2258 places, 7593 transitions, 123314 flow [2022-12-12 13:04:42,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:04:42,342 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:04:42,342 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] [2022-12-12 13:04:42,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-12-12 13:04:42,342 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:04:42,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:04:42,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2132683738, now seen corresponding path program 84 times [2022-12-12 13:04:42,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:04:42,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464182276] [2022-12-12 13:04:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:04:42,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:04:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:04:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:04:42,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:04:42,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464182276] [2022-12-12 13:04:42,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464182276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:04:42,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:04:42,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:04:42,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702183714] [2022-12-12 13:04:42,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:04:42,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:04:42,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:04:42,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:04:42,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:04:42,787 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:04:42,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2258 places, 7593 transitions, 123314 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:04:42,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:04:42,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:04:42,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:05:00,328 INFO L130 PetriNetUnfolder]: 16593/48084 cut-off events. [2022-12-12 13:05:00,329 INFO L131 PetriNetUnfolder]: For 413516/417484 co-relation queries the response was YES. [2022-12-12 13:05:00,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291731 conditions, 48084 events. 16593/48084 cut-off events. For 413516/417484 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 565190 event pairs, 2493 based on Foata normal form. 382/45443 useless extension candidates. Maximal degree in co-relation 169750. Up to 21472 conditions per place. [2022-12-12 13:05:00,693 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 4324 selfloop transitions, 1018 changer transitions 2286/7952 dead transitions. [2022-12-12 13:05:00,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2316 places, 7952 transitions, 143742 flow [2022-12-12 13:05:00,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-12-12 13:05:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2022-12-12 13:05:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 12442 transitions. [2022-12-12 13:05:00,699 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6276230831315577 [2022-12-12 13:05:00,699 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 2011 predicate places. [2022-12-12 13:05:00,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2316 places, 7952 transitions, 143742 flow [2022-12-12 13:05:01,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2302 places, 7952 transitions, 130735 flow, removed 5764 selfloop flow, removed 14 redundant places. [2022-12-12 13:05:01,363 INFO L495 AbstractCegarLoop]: Abstraction has has 2302 places, 7952 transitions, 130735 flow [2022-12-12 13:05:01,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:05:01,364 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:05:01,364 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] [2022-12-12 13:05:01,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-12-12 13:05:01,364 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:05:01,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:05:01,365 INFO L85 PathProgramCache]: Analyzing trace with hash 425605342, now seen corresponding path program 85 times [2022-12-12 13:05:01,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:05:01,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188727670] [2022-12-12 13:05:01,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:05:01,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:05:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:05:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:05:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:05:01,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188727670] [2022-12-12 13:05:01,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188727670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:05:01,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:05:01,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:05:01,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554595045] [2022-12-12 13:05:01,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:05:01,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:05:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:05:01,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:05:01,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:05:01,784 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:05:01,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2302 places, 7952 transitions, 130735 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:05:01,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:05:01,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:05:01,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 13:05:20,047 INFO L130 PetriNetUnfolder]: 16651/48305 cut-off events. [2022-12-12 13:05:20,047 INFO L131 PetriNetUnfolder]: For 432876/436941 co-relation queries the response was YES. [2022-12-12 13:05:20,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301560 conditions, 48305 events. 16651/48305 cut-off events. For 432876/436941 co-relation queries the response was YES. Maximal size of possible extension queue 1002. Compared 568568 event pairs, 2490 based on Foata normal form. 397/45649 useless extension candidates. Maximal degree in co-relation 176961. Up to 21502 conditions per place. [2022-12-12 13:05:20,420 INFO L137 encePairwiseOnDemand]: 290/336 looper letters, 4346 selfloop transitions, 1039 changer transitions 2304/8013 dead transitions. [2022-12-12 13:05:20,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2357 places, 8013 transitions, 147023 flow [2022-12-12 13:05:20,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-12-12 13:05:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2022-12-12 13:05:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 11831 transitions. [2022-12-12 13:05:20,426 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6287733843537415 [2022-12-12 13:05:20,426 INFO L295 CegarLoopForPetriNet]: 305 programPoint places, 2052 predicate places. [2022-12-12 13:05:20,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2357 places, 8013 transitions, 147023 flow [2022-12-12 13:05:21,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2331 places, 8013 transitions, 131834 flow, removed 6381 selfloop flow, removed 26 redundant places. [2022-12-12 13:05:21,054 INFO L495 AbstractCegarLoop]: Abstraction has has 2331 places, 8013 transitions, 131834 flow [2022-12-12 13:05:21,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:05:21,054 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 13:05:21,055 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] [2022-12-12 13:05:21,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-12-12 13:05:21,055 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-12 13:05:21,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 13:05:21,055 INFO L85 PathProgramCache]: Analyzing trace with hash 122009694, now seen corresponding path program 86 times [2022-12-12 13:05:21,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 13:05:21,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834613451] [2022-12-12 13:05:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 13:05:21,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 13:05:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 13:05:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 13:05:21,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 13:05:21,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834613451] [2022-12-12 13:05:21,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834613451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 13:05:21,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 13:05:21,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-12-12 13:05:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566141473] [2022-12-12 13:05:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 13:05:21,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-12 13:05:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 13:05:21,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-12 13:05:21,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-12-12 13:05:21,397 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 336 [2022-12-12 13:05:21,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2331 places, 8013 transitions, 131834 flow. Second operand has 19 states, 19 states have (on average 198.73684210526315) internal successors, (3776), 19 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 13:05:21,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 13:05:21,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 336 [2022-12-12 13:05:21,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2022-12-12 13:05:32,437 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-12-12 13:05:32,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-12-12 13:05:32,490 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-12 13:05:32,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-12-12 13:05:32,490 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 196/336 universal loopers) in iteration 86,while PetriNetUnfolder was constructing finite prefix that currently has 173292 conditions, 27390 events (8419/27389 cut-off events. For 255182/258305 co-relation queries the response was YES. Maximal size of possible extension queue 1018. Compared 344857 event pairs, 1006 based on Foata normal form. 391/27129 useless extension candidates. Maximal degree in co-relation 67419. Up to 7786 conditions per place.). [2022-12-12 13:05:32,494 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-12 13:05:32,495 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-12 13:05:32,499 INFO L445 BasicCegarLoop]: Path program histogram: [86] [2022-12-12 13:05:32,506 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 13:05:32,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 13:05:32,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 01:05:32 BasicIcfg [2022-12-12 13:05:32,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 13:05:32,512 INFO L158 Benchmark]: Toolchain (without parser) took 805999.54ms. Allocated memory was 172.0MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 147.8MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 6.2GB. Max. memory is 8.0GB. [2022-12-12 13:05:32,512 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 172.0MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 13:05:32,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.36ms. Allocated memory is still 172.0MB. Free memory was 147.8MB in the beginning and 135.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-12 13:05:32,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.18ms. Allocated memory is still 172.0MB. Free memory was 135.8MB in the beginning and 133.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 13:05:32,512 INFO L158 Benchmark]: Boogie Preprocessor took 32.04ms. Allocated memory is still 172.0MB. Free memory was 133.1MB in the beginning and 131.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 13:05:32,513 INFO L158 Benchmark]: RCFGBuilder took 659.25ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 106.9MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-12 13:05:32,513 INFO L158 Benchmark]: TraceAbstraction took 805063.08ms. Allocated memory was 172.0MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 105.9MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 6.2GB. Max. memory is 8.0GB. [2022-12-12 13:05:32,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 172.0MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 167.36ms. Allocated memory is still 172.0MB. Free memory was 147.8MB in the beginning and 135.8MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.18ms. Allocated memory is still 172.0MB. Free memory was 135.8MB in the beginning and 133.1MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.04ms. Allocated memory is still 172.0MB. Free memory was 133.1MB in the beginning and 131.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 659.25ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 106.9MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 805063.08ms. Allocated memory was 172.0MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 105.9MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 6.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 103]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 196/336 universal loopers) in iteration 86,while PetriNetUnfolder was constructing finite prefix that currently has 173292 conditions, 27390 events (8419/27389 cut-off events. For 255182/258305 co-relation queries the response was YES. Maximal size of possible extension queue 1018. Compared 344857 event pairs, 1006 based on Foata normal form. 391/27129 useless extension candidates. Maximal degree in co-relation 67419. Up to 7786 conditions per place.). - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 196/336 universal loopers) in iteration 86,while PetriNetUnfolder was constructing finite prefix that currently has 173292 conditions, 27390 events (8419/27389 cut-off events. For 255182/258305 co-relation queries the response was YES. Maximal size of possible extension queue 1018. Compared 344857 event pairs, 1006 based on Foata normal form. 391/27129 useless extension candidates. Maximal degree in co-relation 67419. Up to 7786 conditions per place.). - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (19states, 196/336 universal loopers) in iteration 86,while PetriNetUnfolder was constructing finite prefix that currently has 173292 conditions, 27390 events (8419/27389 cut-off events. For 255182/258305 co-relation queries the response was YES. Maximal size of possible extension queue 1018. Compared 344857 event pairs, 1006 based on Foata normal form. 391/27129 useless extension candidates. Maximal degree in co-relation 67419. Up to 7786 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 503 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 21.1s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 804.9s, OverallIterations: 86, TraceHistogramMax: 1, PathProgramHistogramMax: 86, EmptinessCheckTime: 0.0s, AutomataDifference: 749.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102405 SdHoareTripleChecker+Valid, 78.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102405 mSDsluCounter, 270646 SdHoareTripleChecker+Invalid, 65.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 246130 mSDsCounter, 2252 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 196780 IncrementalHoareTripleChecker+Invalid, 199032 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2252 mSolverCounterUnsat, 24516 mSDtfsCounter, 196780 mSolverCounterSat, 1.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5230 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 5058 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77271 ImplicationChecksByTransitivity, 94.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131834occurred in iteration=85, InterpolantAutomatonStates: 4158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.1s AutomataMinimizationTime, 85 MinimizatonAttempts, 658938 StatesRemovedByMinimization, 85 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 31.6s InterpolantComputationTime, 12040 NumberOfCodeBlocks, 12040 NumberOfCodeBlocksAsserted, 86 NumberOfCheckSat, 11954 ConstructedInterpolants, 0 QuantifiedInterpolants, 77258 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 86 InterpolantComputations, 86 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-12-12 13:05:32,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0