/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:30:26,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:30:26,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:30:26,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:30:26,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:30:26,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:30:26,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:30:26,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:30:26,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:30:26,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:30:26,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:30:26,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:30:26,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:30:26,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:30:26,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:30:26,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:30:26,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:30:26,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:30:26,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:30:26,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:30:26,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:30:26,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:30:26,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:30:26,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:30:26,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 22:30:26,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 22:30:26,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 22:30:26,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 22:30:26,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 22:30:26,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 22:30:26,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:30:26,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:30:26,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:30:26,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:30:26,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:30:26,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:30:26,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:30:26,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:30:26,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:30:26,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:30:26,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:30:26,294 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 [2022-09-20 22:30:26,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:30:26,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:30:26,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:30:26,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:30:26,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:30:26,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:30:26,319 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:30:26,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:30:26,319 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:30:26,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:30:26,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:30:26,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:30:26,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:30:26,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:30:26,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:30:26,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:30:26,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:30:26,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:30:26,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:30:26,321 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:30:26,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:30:26,321 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:30:26,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:30:26,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:30:26,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:30:26,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:30:26,529 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:30:26,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-20 22:30:26,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b364e05/45b51f23171647c6870a2f27d7e199f5/FLAGb495097f5 [2022-09-20 22:30:26,996 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:30:26,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-20 22:30:27,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b364e05/45b51f23171647c6870a2f27d7e199f5/FLAGb495097f5 [2022-09-20 22:30:27,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b364e05/45b51f23171647c6870a2f27d7e199f5 [2022-09-20 22:30:27,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:30:27,367 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:30:27,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:30:27,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:30:27,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:30:27,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed4c33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27, skipping insertion in model container [2022-09-20 22:30:27,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:30:27,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:30:27,559 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-09-20 22:30:27,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:30:27,715 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:30:27,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-09-20 22:30:27,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:30:27,798 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:30:27,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27 WrapperNode [2022-09-20 22:30:27,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:30:27,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:30:27,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:30:27,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:30:27,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,843 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 366 [2022-09-20 22:30:27,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:30:27,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:30:27,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:30:27,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:30:27,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:30:27,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:30:27,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:30:27,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:30:27,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (1/1) ... [2022-09-20 22:30:27,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:30:27,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:30:27,916 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) [2022-09-20 22:30:27,948 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 [2022-09-20 22:30:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-20 22:30:27,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-20 22:30:27,970 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 22:30:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:30:27,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:30:27,972 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:30:28,123 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:30:28,124 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:30:28,674 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:30:29,129 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:30:29,129 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:30:29,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:30:29 BoogieIcfgContainer [2022-09-20 22:30:29,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:30:29,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:30:29,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:30:29,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:30:29,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:30:27" (1/3) ... [2022-09-20 22:30:29,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725e575a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:30:29, skipping insertion in model container [2022-09-20 22:30:29,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:30:27" (2/3) ... [2022-09-20 22:30:29,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725e575a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:30:29, skipping insertion in model container [2022-09-20 22:30:29,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:30:29" (3/3) ... [2022-09-20 22:30:29,140 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-09-20 22:30:29,155 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:30:29,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-20 22:30:29,156 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:30:29,216 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-20 22:30:29,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 99 transitions, 208 flow [2022-09-20 22:30:29,294 INFO L130 PetriNetUnfolder]: 2/97 cut-off events. [2022-09-20 22:30:29,294 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:30:29,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-09-20 22:30:29,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 99 transitions, 208 flow [2022-09-20 22:30:29,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 200 flow [2022-09-20 22:30:29,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:30:29,321 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;@35034490, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:30:29,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-09-20 22:30:29,337 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-09-20 22:30:29,338 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:30:29,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:29,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:30:29,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:29,344 INFO L85 PathProgramCache]: Analyzing trace with hash -491542144, now seen corresponding path program 1 times [2022-09-20 22:30:29,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:29,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662725110] [2022-09-20 22:30:29,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:29,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:29,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:29,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662725110] [2022-09-20 22:30:29,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662725110] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:29,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:29,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-20 22:30:29,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595225673] [2022-09-20 22:30:29,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:29,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:30:29,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:30:29,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:30:29,704 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 99 [2022-09-20 22:30:29,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-09-20 22:30:29,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:29,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 99 [2022-09-20 22:30:29,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:29,874 INFO L130 PetriNetUnfolder]: 60/468 cut-off events. [2022-09-20 22:30:29,874 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-09-20 22:30:29,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 468 events. 60/468 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2629 event pairs, 25 based on Foata normal form. 23/460 useless extension candidates. Maximal degree in co-relation 546. Up to 88 conditions per place. [2022-09-20 22:30:29,880 INFO L137 encePairwiseOnDemand]: 94/99 looper letters, 14 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2022-09-20 22:30:29,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 98 transitions, 234 flow [2022-09-20 22:30:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:30:29,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:30:29,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-09-20 22:30:29,892 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9191919191919192 [2022-09-20 22:30:29,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-09-20 22:30:29,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-09-20 22:30:29,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:29,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-09-20 22:30:29,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2022-09-20 22:30:29,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2022-09-20 22:30:29,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2022-09-20 22:30:29,907 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 200 flow. Second operand 3 states and 273 transitions. [2022-09-20 22:30:29,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 98 transitions, 234 flow [2022-09-20 22:30:29,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 98 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:30:29,912 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 194 flow [2022-09-20 22:30:29,914 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2022-09-20 22:30:29,916 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, -2 predicate places. [2022-09-20 22:30:29,916 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 194 flow [2022-09-20 22:30:29,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2022-09-20 22:30:29,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:29,917 INFO L208 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] [2022-09-20 22:30:29,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:30:29,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:29,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1591079342, now seen corresponding path program 1 times [2022-09-20 22:30:29,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:29,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870607205] [2022-09-20 22:30:29,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:29,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:30,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:30,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870607205] [2022-09-20 22:30:30,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870607205] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:30,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:30,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:30:30,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162720861] [2022-09-20 22:30:30,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:30,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:30:30,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:30,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:30:30,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:30:30,108 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 99 [2022-09-20 22:30:30,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2022-09-20 22:30:30,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:30,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 99 [2022-09-20 22:30:30,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:30,423 INFO L130 PetriNetUnfolder]: 208/721 cut-off events. [2022-09-20 22:30:30,423 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-09-20 22:30:30,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 721 events. 208/721 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4264 event pairs, 88 based on Foata normal form. 0/691 useless extension candidates. Maximal degree in co-relation 1099. Up to 149 conditions per place. [2022-09-20 22:30:30,429 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 46/134 dead transitions. [2022-09-20 22:30:30,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 134 transitions, 408 flow [2022-09-20 22:30:30,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:30:30,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:30:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2022-09-20 22:30:30,439 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8552188552188552 [2022-09-20 22:30:30,439 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 762 transitions. [2022-09-20 22:30:30,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 762 transitions. [2022-09-20 22:30:30,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:30,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 762 transitions. [2022-09-20 22:30:30,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.66666666666667) internal successors, (762), 9 states have internal predecessors, (762), 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) [2022-09-20 22:30:30,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 22:30:30,445 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 22:30:30,445 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 194 flow. Second operand 9 states and 762 transitions. [2022-09-20 22:30:30,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 134 transitions, 408 flow [2022-09-20 22:30:30,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 134 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:30:30,448 INFO L231 Difference]: Finished difference. Result has 113 places, 83 transitions, 190 flow [2022-09-20 22:30:30,448 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=113, PETRI_TRANSITIONS=83} [2022-09-20 22:30:30,450 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2022-09-20 22:30:30,450 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 83 transitions, 190 flow [2022-09-20 22:30:30,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 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) [2022-09-20 22:30:30,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:30,450 INFO L208 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] [2022-09-20 22:30:30,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:30:30,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:30,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:30,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2000059120, now seen corresponding path program 1 times [2022-09-20 22:30:30,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:30,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870871109] [2022-09-20 22:30:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:30,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:30,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:30,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:30,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870871109] [2022-09-20 22:30:30,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870871109] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:30,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:30,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-20 22:30:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713406169] [2022-09-20 22:30:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:30,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-20 22:30:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-20 22:30:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-20 22:30:30,704 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 99 [2022-09-20 22:30:30,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 83 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2022-09-20 22:30:30,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:30,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 99 [2022-09-20 22:30:30,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:30,924 INFO L130 PetriNetUnfolder]: 127/381 cut-off events. [2022-09-20 22:30:30,924 INFO L131 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2022-09-20 22:30:30,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 381 events. 127/381 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1572 event pairs, 36 based on Foata normal form. 10/372 useless extension candidates. Maximal degree in co-relation 699. Up to 120 conditions per place. [2022-09-20 22:30:30,926 INFO L137 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 25/112 dead transitions. [2022-09-20 22:30:30,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 112 transitions, 361 flow [2022-09-20 22:30:30,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:30:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:30:30,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2022-09-20 22:30:30,929 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2022-09-20 22:30:30,929 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2022-09-20 22:30:30,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2022-09-20 22:30:30,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:30,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2022-09-20 22:30:30,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 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) [2022-09-20 22:30:30,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 22:30:30,933 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 22:30:30,933 INFO L175 Difference]: Start difference. First operand has 113 places, 83 transitions, 190 flow. Second operand 9 states and 741 transitions. [2022-09-20 22:30:30,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 112 transitions, 361 flow [2022-09-20 22:30:30,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 327 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-09-20 22:30:30,937 INFO L231 Difference]: Finished difference. Result has 104 places, 83 transitions, 194 flow [2022-09-20 22:30:30,937 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=194, PETRI_PLACES=104, PETRI_TRANSITIONS=83} [2022-09-20 22:30:30,938 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-09-20 22:30:30,938 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 83 transitions, 194 flow [2022-09-20 22:30:30,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2022-09-20 22:30:30,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:30,939 INFO L208 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] [2022-09-20 22:30:30,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:30:30,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:30,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:30,939 INFO L85 PathProgramCache]: Analyzing trace with hash -664211543, now seen corresponding path program 1 times [2022-09-20 22:30:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:30,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219999653] [2022-09-20 22:30:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:30,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:31,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:31,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219999653] [2022-09-20 22:30:31,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219999653] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:31,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:31,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-20 22:30:31,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712147099] [2022-09-20 22:30:31,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:31,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-20 22:30:31,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:31,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-20 22:30:31,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-09-20 22:30:31,369 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 99 [2022-09-20 22:30:31,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 83 transitions, 194 flow. Second operand has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2022-09-20 22:30:31,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:31,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 99 [2022-09-20 22:30:31,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:31,792 INFO L130 PetriNetUnfolder]: 119/373 cut-off events. [2022-09-20 22:30:31,793 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2022-09-20 22:30:31,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 373 events. 119/373 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1496 event pairs, 16 based on Foata normal form. 6/356 useless extension candidates. Maximal degree in co-relation 687. Up to 135 conditions per place. [2022-09-20 22:30:31,795 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 28 selfloop transitions, 11 changer transitions 19/119 dead transitions. [2022-09-20 22:30:31,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 119 transitions, 407 flow [2022-09-20 22:30:31,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-20 22:30:31,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-09-20 22:30:31,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1212 transitions. [2022-09-20 22:30:31,798 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7651515151515151 [2022-09-20 22:30:31,798 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1212 transitions. [2022-09-20 22:30:31,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1212 transitions. [2022-09-20 22:30:31,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:31,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1212 transitions. [2022-09-20 22:30:31,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.75) internal successors, (1212), 16 states have internal predecessors, (1212), 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) [2022-09-20 22:30:31,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-09-20 22:30:31,802 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 99.0) internal successors, (1683), 17 states have internal predecessors, (1683), 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) [2022-09-20 22:30:31,802 INFO L175 Difference]: Start difference. First operand has 104 places, 83 transitions, 194 flow. Second operand 16 states and 1212 transitions. [2022-09-20 22:30:31,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 119 transitions, 407 flow [2022-09-20 22:30:31,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 119 transitions, 375 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-09-20 22:30:31,805 INFO L231 Difference]: Finished difference. Result has 114 places, 88 transitions, 245 flow [2022-09-20 22:30:31,805 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=245, PETRI_PLACES=114, PETRI_TRANSITIONS=88} [2022-09-20 22:30:31,806 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 12 predicate places. [2022-09-20 22:30:31,806 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 88 transitions, 245 flow [2022-09-20 22:30:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 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) [2022-09-20 22:30:31,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:31,806 INFO L208 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] [2022-09-20 22:30:31,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:30:31,807 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1558082475, now seen corresponding path program 2 times [2022-09-20 22:30:31,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:31,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788153374] [2022-09-20 22:30:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:31,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:32,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:32,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788153374] [2022-09-20 22:30:32,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788153374] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:32,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:32,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-09-20 22:30:32,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251608666] [2022-09-20 22:30:32,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:32,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-20 22:30:32,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:32,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-20 22:30:32,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-09-20 22:30:32,113 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 99 [2022-09-20 22:30:32,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 88 transitions, 245 flow. Second operand has 12 states, 12 states have (on average 73.58333333333333) internal successors, (883), 12 states have internal predecessors, (883), 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) [2022-09-20 22:30:32,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:32,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 99 [2022-09-20 22:30:32,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:32,710 INFO L130 PetriNetUnfolder]: 152/483 cut-off events. [2022-09-20 22:30:32,710 INFO L131 PetriNetUnfolder]: For 399/538 co-relation queries the response was YES. [2022-09-20 22:30:32,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 483 events. 152/483 cut-off events. For 399/538 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2433 event pairs, 13 based on Foata normal form. 19/476 useless extension candidates. Maximal degree in co-relation 1100. Up to 101 conditions per place. [2022-09-20 22:30:32,713 INFO L137 encePairwiseOnDemand]: 86/99 looper letters, 27 selfloop transitions, 14 changer transitions 32/134 dead transitions. [2022-09-20 22:30:32,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 561 flow [2022-09-20 22:30:32,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-09-20 22:30:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-09-20 22:30:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1442 transitions. [2022-09-20 22:30:32,720 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7666135034556087 [2022-09-20 22:30:32,720 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1442 transitions. [2022-09-20 22:30:32,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1442 transitions. [2022-09-20 22:30:32,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:32,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1442 transitions. [2022-09-20 22:30:32,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 75.89473684210526) internal successors, (1442), 19 states have internal predecessors, (1442), 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) [2022-09-20 22:30:32,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 99.0) internal successors, (1980), 20 states have internal predecessors, (1980), 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) [2022-09-20 22:30:32,727 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 99.0) internal successors, (1980), 20 states have internal predecessors, (1980), 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) [2022-09-20 22:30:32,728 INFO L175 Difference]: Start difference. First operand has 114 places, 88 transitions, 245 flow. Second operand 19 states and 1442 transitions. [2022-09-20 22:30:32,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 561 flow [2022-09-20 22:30:32,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 134 transitions, 522 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-09-20 22:30:32,734 INFO L231 Difference]: Finished difference. Result has 130 places, 92 transitions, 318 flow [2022-09-20 22:30:32,734 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=318, PETRI_PLACES=130, PETRI_TRANSITIONS=92} [2022-09-20 22:30:32,736 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 28 predicate places. [2022-09-20 22:30:32,736 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 92 transitions, 318 flow [2022-09-20 22:30:32,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.58333333333333) internal successors, (883), 12 states have internal predecessors, (883), 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) [2022-09-20 22:30:32,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:32,737 INFO L208 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] [2022-09-20 22:30:32,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:30:32,737 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:32,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:32,738 INFO L85 PathProgramCache]: Analyzing trace with hash -19587085, now seen corresponding path program 1 times [2022-09-20 22:30:32,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:32,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824987720] [2022-09-20 22:30:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:32,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:32,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:32,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824987720] [2022-09-20 22:30:32,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824987720] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:32,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:32,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:30:32,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803752012] [2022-09-20 22:30:32,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:32,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:30:32,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:32,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:30:32,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:30:32,881 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 99 [2022-09-20 22:30:32,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 92 transitions, 318 flow. Second operand has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 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) [2022-09-20 22:30:32,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:32,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 99 [2022-09-20 22:30:32,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:33,095 INFO L130 PetriNetUnfolder]: 134/500 cut-off events. [2022-09-20 22:30:33,096 INFO L131 PetriNetUnfolder]: For 816/967 co-relation queries the response was YES. [2022-09-20 22:30:33,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1312 conditions, 500 events. 134/500 cut-off events. For 816/967 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2854 event pairs, 33 based on Foata normal form. 6/475 useless extension candidates. Maximal degree in co-relation 1251. Up to 158 conditions per place. [2022-09-20 22:30:33,099 INFO L137 encePairwiseOnDemand]: 89/99 looper letters, 24 selfloop transitions, 7 changer transitions 21/117 dead transitions. [2022-09-20 22:30:33,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 117 transitions, 559 flow [2022-09-20 22:30:33,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:30:33,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:30:33,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 565 transitions. [2022-09-20 22:30:33,100 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8152958152958153 [2022-09-20 22:30:33,100 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 565 transitions. [2022-09-20 22:30:33,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 565 transitions. [2022-09-20 22:30:33,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:33,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 565 transitions. [2022-09-20 22:30:33,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2022-09-20 22:30:33,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2022-09-20 22:30:33,103 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 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) [2022-09-20 22:30:33,103 INFO L175 Difference]: Start difference. First operand has 130 places, 92 transitions, 318 flow. Second operand 7 states and 565 transitions. [2022-09-20 22:30:33,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 117 transitions, 559 flow [2022-09-20 22:30:33,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 117 transitions, 465 flow, removed 39 selfloop flow, removed 19 redundant places. [2022-09-20 22:30:33,107 INFO L231 Difference]: Finished difference. Result has 113 places, 96 transitions, 314 flow [2022-09-20 22:30:33,107 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=314, PETRI_PLACES=113, PETRI_TRANSITIONS=96} [2022-09-20 22:30:33,107 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2022-09-20 22:30:33,107 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 96 transitions, 314 flow [2022-09-20 22:30:33,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 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) [2022-09-20 22:30:33,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:33,108 INFO L208 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] [2022-09-20 22:30:33,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:30:33,108 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:33,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:33,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1179520175, now seen corresponding path program 2 times [2022-09-20 22:30:33,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:33,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980814421] [2022-09-20 22:30:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:33,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:33,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:33,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:33,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980814421] [2022-09-20 22:30:33,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980814421] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:33,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:33,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-20 22:30:33,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406292532] [2022-09-20 22:30:33,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:33,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-09-20 22:30:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:33,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-09-20 22:30:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-09-20 22:30:33,422 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-09-20 22:30:33,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 96 transitions, 314 flow. Second operand has 13 states, 13 states have (on average 71.6923076923077) internal successors, (932), 13 states have internal predecessors, (932), 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) [2022-09-20 22:30:33,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:33,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-09-20 22:30:33,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:33,827 INFO L130 PetriNetUnfolder]: 96/379 cut-off events. [2022-09-20 22:30:33,828 INFO L131 PetriNetUnfolder]: For 482/970 co-relation queries the response was YES. [2022-09-20 22:30:33,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 379 events. 96/379 cut-off events. For 482/970 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1744 event pairs, 19 based on Foata normal form. 11/369 useless extension candidates. Maximal degree in co-relation 999. Up to 118 conditions per place. [2022-09-20 22:30:33,830 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 34 selfloop transitions, 14 changer transitions 17/124 dead transitions. [2022-09-20 22:30:33,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 124 transitions, 583 flow [2022-09-20 22:30:33,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-09-20 22:30:33,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-09-20 22:30:33,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1034 transitions. [2022-09-20 22:30:33,832 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2022-09-20 22:30:33,832 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1034 transitions. [2022-09-20 22:30:33,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1034 transitions. [2022-09-20 22:30:33,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:33,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1034 transitions. [2022-09-20 22:30:33,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.85714285714286) internal successors, (1034), 14 states have internal predecessors, (1034), 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) [2022-09-20 22:30:33,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2022-09-20 22:30:33,836 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 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) [2022-09-20 22:30:33,836 INFO L175 Difference]: Start difference. First operand has 113 places, 96 transitions, 314 flow. Second operand 14 states and 1034 transitions. [2022-09-20 22:30:33,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 124 transitions, 583 flow [2022-09-20 22:30:33,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 124 transitions, 556 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-09-20 22:30:33,839 INFO L231 Difference]: Finished difference. Result has 126 places, 100 transitions, 403 flow [2022-09-20 22:30:33,839 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=403, PETRI_PLACES=126, PETRI_TRANSITIONS=100} [2022-09-20 22:30:33,840 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 24 predicate places. [2022-09-20 22:30:33,840 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 100 transitions, 403 flow [2022-09-20 22:30:33,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 71.6923076923077) internal successors, (932), 13 states have internal predecessors, (932), 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) [2022-09-20 22:30:33,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:33,840 INFO L208 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] [2022-09-20 22:30:33,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:30:33,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:33,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:33,841 INFO L85 PathProgramCache]: Analyzing trace with hash 217350545, now seen corresponding path program 3 times [2022-09-20 22:30:33,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:33,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894768626] [2022-09-20 22:30:33,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:33,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:33,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:33,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894768626] [2022-09-20 22:30:33,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894768626] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:33,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:33,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 22:30:33,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469912568] [2022-09-20 22:30:33,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:33,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 22:30:33,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:33,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 22:30:33,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 22:30:33,979 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-09-20 22:30:33,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 100 transitions, 403 flow. Second operand has 11 states, 11 states have (on average 71.81818181818181) internal successors, (790), 11 states have internal predecessors, (790), 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) [2022-09-20 22:30:33,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:33,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-09-20 22:30:33,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:34,420 INFO L130 PetriNetUnfolder]: 277/820 cut-off events. [2022-09-20 22:30:34,421 INFO L131 PetriNetUnfolder]: For 2079/2306 co-relation queries the response was YES. [2022-09-20 22:30:34,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2494 conditions, 820 events. 277/820 cut-off events. For 2079/2306 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5009 event pairs, 63 based on Foata normal form. 29/832 useless extension candidates. Maximal degree in co-relation 2419. Up to 183 conditions per place. [2022-09-20 22:30:34,425 INFO L137 encePairwiseOnDemand]: 85/99 looper letters, 47 selfloop transitions, 15 changer transitions 60/182 dead transitions. [2022-09-20 22:30:34,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 182 transitions, 1175 flow [2022-09-20 22:30:34,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-20 22:30:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-09-20 22:30:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1147 transitions. [2022-09-20 22:30:34,428 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7723905723905724 [2022-09-20 22:30:34,428 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1147 transitions. [2022-09-20 22:30:34,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1147 transitions. [2022-09-20 22:30:34,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:34,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1147 transitions. [2022-09-20 22:30:34,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.46666666666667) internal successors, (1147), 15 states have internal predecessors, (1147), 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) [2022-09-20 22:30:34,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 22:30:34,432 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 22:30:34,432 INFO L175 Difference]: Start difference. First operand has 126 places, 100 transitions, 403 flow. Second operand 15 states and 1147 transitions. [2022-09-20 22:30:34,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 182 transitions, 1175 flow [2022-09-20 22:30:34,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 182 transitions, 1140 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-09-20 22:30:34,438 INFO L231 Difference]: Finished difference. Result has 139 places, 105 transitions, 514 flow [2022-09-20 22:30:34,438 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=514, PETRI_PLACES=139, PETRI_TRANSITIONS=105} [2022-09-20 22:30:34,438 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 37 predicate places. [2022-09-20 22:30:34,438 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 105 transitions, 514 flow [2022-09-20 22:30:34,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 71.81818181818181) internal successors, (790), 11 states have internal predecessors, (790), 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) [2022-09-20 22:30:34,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:34,439 INFO L208 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] [2022-09-20 22:30:34,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 22:30:34,439 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:34,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1871122912, now seen corresponding path program 1 times [2022-09-20 22:30:34,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:34,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076120207] [2022-09-20 22:30:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:34,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:34,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:34,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:34,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076120207] [2022-09-20 22:30:34,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076120207] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:34,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:34,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:30:34,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882388445] [2022-09-20 22:30:34,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:34,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:30:34,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:34,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:30:34,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:30:34,567 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-09-20 22:30:34,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 105 transitions, 514 flow. Second operand has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 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) [2022-09-20 22:30:34,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:34,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-09-20 22:30:34,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:34,802 INFO L130 PetriNetUnfolder]: 112/447 cut-off events. [2022-09-20 22:30:34,802 INFO L131 PetriNetUnfolder]: For 2097/2786 co-relation queries the response was YES. [2022-09-20 22:30:34,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1787 conditions, 447 events. 112/447 cut-off events. For 2097/2786 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2324 event pairs, 27 based on Foata normal form. 45/468 useless extension candidates. Maximal degree in co-relation 1710. Up to 120 conditions per place. [2022-09-20 22:30:34,805 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 30 selfloop transitions, 14 changer transitions 27/135 dead transitions. [2022-09-20 22:30:34,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 135 transitions, 935 flow [2022-09-20 22:30:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:30:34,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:30:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 709 transitions. [2022-09-20 22:30:34,807 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7957351290684624 [2022-09-20 22:30:34,808 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 709 transitions. [2022-09-20 22:30:34,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 709 transitions. [2022-09-20 22:30:34,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:34,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 709 transitions. [2022-09-20 22:30:34,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.77777777777777) internal successors, (709), 9 states have internal predecessors, (709), 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) [2022-09-20 22:30:34,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 22:30:34,811 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 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) [2022-09-20 22:30:34,811 INFO L175 Difference]: Start difference. First operand has 139 places, 105 transitions, 514 flow. Second operand 9 states and 709 transitions. [2022-09-20 22:30:34,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 135 transitions, 935 flow [2022-09-20 22:30:34,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 135 transitions, 913 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-09-20 22:30:34,817 INFO L231 Difference]: Finished difference. Result has 138 places, 108 transitions, 594 flow [2022-09-20 22:30:34,817 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=594, PETRI_PLACES=138, PETRI_TRANSITIONS=108} [2022-09-20 22:30:34,817 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 36 predicate places. [2022-09-20 22:30:34,817 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 108 transitions, 594 flow [2022-09-20 22:30:34,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 75.5) internal successors, (604), 8 states have internal predecessors, (604), 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) [2022-09-20 22:30:34,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:34,818 INFO L208 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] [2022-09-20 22:30:34,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-20 22:30:34,818 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:34,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:34,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2040082016, now seen corresponding path program 2 times [2022-09-20 22:30:34,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:34,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171966262] [2022-09-20 22:30:34,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:34,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:35,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:35,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:35,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171966262] [2022-09-20 22:30:35,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171966262] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:35,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:35,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-09-20 22:30:35,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034393797] [2022-09-20 22:30:35,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:35,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-20 22:30:35,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-20 22:30:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-09-20 22:30:35,021 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 99 [2022-09-20 22:30:35,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 108 transitions, 594 flow. Second operand has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 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) [2022-09-20 22:30:35,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:35,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 99 [2022-09-20 22:30:35,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:35,625 INFO L130 PetriNetUnfolder]: 174/579 cut-off events. [2022-09-20 22:30:35,625 INFO L131 PetriNetUnfolder]: For 2488/2950 co-relation queries the response was YES. [2022-09-20 22:30:35,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2328 conditions, 579 events. 174/579 cut-off events. For 2488/2950 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3188 event pairs, 11 based on Foata normal form. 24/586 useless extension candidates. Maximal degree in co-relation 2242. Up to 129 conditions per place. [2022-09-20 22:30:35,629 INFO L137 encePairwiseOnDemand]: 85/99 looper letters, 55 selfloop transitions, 22 changer transitions 42/175 dead transitions. [2022-09-20 22:30:35,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 175 transitions, 1419 flow [2022-09-20 22:30:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-20 22:30:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-09-20 22:30:35,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1505 transitions. [2022-09-20 22:30:35,632 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7239057239057239 [2022-09-20 22:30:35,632 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1505 transitions. [2022-09-20 22:30:35,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1505 transitions. [2022-09-20 22:30:35,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:35,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1505 transitions. [2022-09-20 22:30:35,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 71.66666666666667) internal successors, (1505), 21 states have internal predecessors, (1505), 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) [2022-09-20 22:30:35,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 99.0) internal successors, (2178), 22 states have internal predecessors, (2178), 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) [2022-09-20 22:30:35,638 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 99.0) internal successors, (2178), 22 states have internal predecessors, (2178), 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) [2022-09-20 22:30:35,638 INFO L175 Difference]: Start difference. First operand has 138 places, 108 transitions, 594 flow. Second operand 21 states and 1505 transitions. [2022-09-20 22:30:35,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 175 transitions, 1419 flow [2022-09-20 22:30:35,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 175 transitions, 1315 flow, removed 36 selfloop flow, removed 8 redundant places. [2022-09-20 22:30:35,646 INFO L231 Difference]: Finished difference. Result has 158 places, 116 transitions, 729 flow [2022-09-20 22:30:35,646 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=729, PETRI_PLACES=158, PETRI_TRANSITIONS=116} [2022-09-20 22:30:35,647 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 56 predicate places. [2022-09-20 22:30:35,647 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 116 transitions, 729 flow [2022-09-20 22:30:35,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 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) [2022-09-20 22:30:35,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:35,648 INFO L208 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] [2022-09-20 22:30:35,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-20 22:30:35,648 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:35,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:35,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2012823948, now seen corresponding path program 1 times [2022-09-20 22:30:35,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:35,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541955104] [2022-09-20 22:30:35,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:35,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:35,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:35,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541955104] [2022-09-20 22:30:35,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541955104] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:35,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:35,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-09-20 22:30:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530354902] [2022-09-20 22:30:35,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:35,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-20 22:30:35,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:35,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-20 22:30:35,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-09-20 22:30:35,930 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2022-09-20 22:30:35,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 116 transitions, 729 flow. Second operand has 16 states, 16 states have (on average 69.5625) internal successors, (1113), 16 states have internal predecessors, (1113), 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) [2022-09-20 22:30:35,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:35,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2022-09-20 22:30:35,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:36,254 INFO L130 PetriNetUnfolder]: 85/394 cut-off events. [2022-09-20 22:30:36,255 INFO L131 PetriNetUnfolder]: For 2467/3168 co-relation queries the response was YES. [2022-09-20 22:30:36,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 394 events. 85/394 cut-off events. For 2467/3168 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2009 event pairs, 26 based on Foata normal form. 28/400 useless extension candidates. Maximal degree in co-relation 1625. Up to 84 conditions per place. [2022-09-20 22:30:36,258 INFO L137 encePairwiseOnDemand]: 87/99 looper letters, 34 selfloop transitions, 6 changer transitions 43/143 dead transitions. [2022-09-20 22:30:36,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 143 transitions, 1195 flow [2022-09-20 22:30:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-09-20 22:30:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-09-20 22:30:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 935 transitions. [2022-09-20 22:30:36,259 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7264957264957265 [2022-09-20 22:30:36,259 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 935 transitions. [2022-09-20 22:30:36,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 935 transitions. [2022-09-20 22:30:36,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:36,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 935 transitions. [2022-09-20 22:30:36,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.92307692307692) internal successors, (935), 13 states have internal predecessors, (935), 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) [2022-09-20 22:30:36,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 22:30:36,263 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 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) [2022-09-20 22:30:36,263 INFO L175 Difference]: Start difference. First operand has 158 places, 116 transitions, 729 flow. Second operand 13 states and 935 transitions. [2022-09-20 22:30:36,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 143 transitions, 1195 flow [2022-09-20 22:30:36,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 143 transitions, 1096 flow, removed 36 selfloop flow, removed 20 redundant places. [2022-09-20 22:30:36,270 INFO L231 Difference]: Finished difference. Result has 142 places, 99 transitions, 481 flow [2022-09-20 22:30:36,270 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=481, PETRI_PLACES=142, PETRI_TRANSITIONS=99} [2022-09-20 22:30:36,271 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 40 predicate places. [2022-09-20 22:30:36,271 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 99 transitions, 481 flow [2022-09-20 22:30:36,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 69.5625) internal successors, (1113), 16 states have internal predecessors, (1113), 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) [2022-09-20 22:30:36,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:30:36,272 INFO L208 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] [2022-09-20 22:30:36,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-20 22:30:36,272 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-09-20 22:30:36,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:30:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2044660336, now seen corresponding path program 2 times [2022-09-20 22:30:36,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:30:36,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089037555] [2022-09-20 22:30:36,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:30:36,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:30:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:30:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:30:36,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:30:36,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089037555] [2022-09-20 22:30:36,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089037555] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:30:36,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:30:36,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-09-20 22:30:36,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841979431] [2022-09-20 22:30:36,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:30:36,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-20 22:30:36,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:30:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-20 22:30:36,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-09-20 22:30:36,488 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 99 [2022-09-20 22:30:36,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 99 transitions, 481 flow. Second operand has 14 states, 14 states have (on average 69.64285714285714) internal successors, (975), 14 states have internal predecessors, (975), 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) [2022-09-20 22:30:36,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:30:36,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 99 [2022-09-20 22:30:36,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:30:36,810 INFO L130 PetriNetUnfolder]: 85/285 cut-off events. [2022-09-20 22:30:36,810 INFO L131 PetriNetUnfolder]: For 1312/1339 co-relation queries the response was YES. [2022-09-20 22:30:36,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 285 events. 85/285 cut-off events. For 1312/1339 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1095 event pairs, 0 based on Foata normal form. 8/291 useless extension candidates. Maximal degree in co-relation 1105. Up to 59 conditions per place. [2022-09-20 22:30:36,812 INFO L137 encePairwiseOnDemand]: 88/99 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2022-09-20 22:30:36,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 132 transitions, 943 flow [2022-09-20 22:30:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-20 22:30:36,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-09-20 22:30:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1085 transitions. [2022-09-20 22:30:36,820 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7306397306397306 [2022-09-20 22:30:36,820 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1085 transitions. [2022-09-20 22:30:36,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1085 transitions. [2022-09-20 22:30:36,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:30:36,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1085 transitions. [2022-09-20 22:30:36,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.33333333333333) internal successors, (1085), 15 states have internal predecessors, (1085), 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) [2022-09-20 22:30:36,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 22:30:36,824 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 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) [2022-09-20 22:30:36,824 INFO L175 Difference]: Start difference. First operand has 142 places, 99 transitions, 481 flow. Second operand 15 states and 1085 transitions. [2022-09-20 22:30:36,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 132 transitions, 943 flow [2022-09-20 22:30:36,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 132 transitions, 829 flow, removed 38 selfloop flow, removed 16 redundant places. [2022-09-20 22:30:36,829 INFO L231 Difference]: Finished difference. Result has 129 places, 0 transitions, 0 flow [2022-09-20 22:30:36,830 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=129, PETRI_TRANSITIONS=0} [2022-09-20 22:30:36,830 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 27 predicate places. [2022-09-20 22:30:36,830 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 0 transitions, 0 flow [2022-09-20 22:30:36,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 69.64285714285714) internal successors, (975), 14 states have internal predecessors, (975), 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) [2022-09-20 22:30:36,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-09-20 22:30:36,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-09-20 22:30:36,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-09-20 22:30:36,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-09-20 22:30:36,833 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-09-20 22:30:36,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-20 22:30:36,834 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1] [2022-09-20 22:30:36,837 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:30:36,837 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:30:36,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:30:36 BasicIcfg [2022-09-20 22:30:36,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:30:36,840 INFO L158 Benchmark]: Toolchain (without parser) took 9472.77ms. Allocated memory was 197.1MB in the beginning and 402.7MB in the end (delta: 205.5MB). Free memory was 164.8MB in the beginning and 250.9MB in the end (delta: -86.2MB). Peak memory consumption was 119.4MB. Max. memory is 8.0GB. [2022-09-20 22:30:36,840 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:30:36,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.01ms. Allocated memory is still 197.1MB. Free memory was 164.6MB in the beginning and 149.4MB in the end (delta: 15.2MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2022-09-20 22:30:36,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.32ms. Allocated memory is still 197.1MB. Free memory was 149.4MB in the beginning and 145.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-20 22:30:36,841 INFO L158 Benchmark]: Boogie Preprocessor took 47.91ms. Allocated memory is still 197.1MB. Free memory was 145.8MB in the beginning and 143.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:30:36,841 INFO L158 Benchmark]: RCFGBuilder took 1238.27ms. Allocated memory was 197.1MB in the beginning and 254.8MB in the end (delta: 57.7MB). Free memory was 142.9MB in the beginning and 127.6MB in the end (delta: 15.2MB). Peak memory consumption was 80.0MB. Max. memory is 8.0GB. [2022-09-20 22:30:36,841 INFO L158 Benchmark]: TraceAbstraction took 7705.70ms. Allocated memory was 254.8MB in the beginning and 402.7MB in the end (delta: 147.8MB). Free memory was 126.6MB in the beginning and 250.9MB in the end (delta: -124.4MB). Peak memory consumption was 23.5MB. Max. memory is 8.0GB. [2022-09-20 22:30:36,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 431.01ms. Allocated memory is still 197.1MB. Free memory was 164.6MB in the beginning and 149.4MB in the end (delta: 15.2MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.32ms. Allocated memory is still 197.1MB. Free memory was 149.4MB in the beginning and 145.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.91ms. Allocated memory is still 197.1MB. Free memory was 145.8MB in the beginning and 143.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1238.27ms. Allocated memory was 197.1MB in the beginning and 254.8MB in the end (delta: 57.7MB). Free memory was 142.9MB in the beginning and 127.6MB in the end (delta: 15.2MB). Peak memory consumption was 80.0MB. Max. memory is 8.0GB. * TraceAbstraction took 7705.70ms. Allocated memory was 254.8MB in the beginning and 402.7MB in the end (delta: 147.8MB). Free memory was 126.6MB in the beginning and 250.9MB in the end (delta: -124.4MB). Peak memory consumption was 23.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 120 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 526 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 526 mSDsluCounter, 689 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 977 mSDsCounter, 384 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2104 IncrementalHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 384 mSolverCounterUnsat, 115 mSDtfsCounter, 2104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=729occurred in iteration=10, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 852 NumberOfCodeBlocks, 852 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 840 ConstructedInterpolants, 0 QuantifiedInterpolants, 5643 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 22:30:36,868 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 Received shutdown request...